Definition of crude in US English:



  • 1In a natural or raw state; not yet processed or refined.

    ‘crude protein’
    • ‘The refinery, which processes crude oil, has an annual capacity of around 10 million tonnes.’
    • ‘The embargo caused an oil shock that ‘doubled the real price of crude oil at the refinery level, and caused massive shortages in the US’.’
    • ‘Oil refining refers to the processes involved in converting crude oil into useful petroleum products.’
    • ‘The bulk of exports are crude oil, refined products, and natural gas liquids.’
    • ‘For example, a petroleum firm explores for oil in many parts of the world, transports it to its refineries where crude oil is processed, and supplies various petroleum outputs to retail outlets.’
    • ‘The co-op has filed for a patent on a process it will use to process crude soybean oil into poly-oil.’
    • ‘Indonesia mainly exports crude palm oil, natural gas, agricultural and mining products, and wood to South Korea.’
    • ‘Their production of crude oil and natural gas began in 1969, greatly reducing Australia's dependence on imported oil.’
    • ‘The first thing to understand about petroleum is this: crude oil is only valuable because it can be made into other things.’
    • ‘The sooner we develop them the less reliant we will be on imports of crude oil and refined petroleum products.’
    unrefined, unpurified, unprocessed, untreated
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    1. 1.1Statistics (of figures) not adjusted or corrected.
      ‘the crude mortality rate’
      • ‘There are significant decreases in crude and risk adjusted mortality in the four years after appointment.’
      • ‘Second, we adjusted crude effects for parental age, education, BMI, height, and weight.’
      • ‘Using multivariate logistic regression we adjusted the crude odds ratios for these variables, also controlling for any identified confounders and stratifying by effect modifiers.’
      • ‘European countries have high taxation, and because there are lots of them, this distorts the calculation of crude averages.’
    2. 1.2 (of an estimate or guess) likely to be only approximately accurate.
      • ‘It is probably time to accept that raw taxonomic counts provide only a first, crude estimate of biodiversity dynamics and occasionally may be downright misleading.’
      • ‘‘I made crude estimates of bite force years ago on large alligators and knew that the forces were large,’ he said.’
      • ‘That must be, at best, a very crude estimate that could be wildly off in either direction.’
      • ‘Such an estimate, however crude it may be, is decidedly impressive.’
      • ‘But I'm willing to consider crude estimates, if no more precise ones are conveniently available.’
      • ‘Also, the mathematical models currently used in phylogenetic analysis are crude approximations to reality.’
      • ‘Obviously these comparisons are extremely crude.’
      • ‘They also classify species according to abundance (based on crude estimates of population density and suitable habitat).’
      • ‘These comparisons are rather crude since the sample sizes and geographic distribution of lines differ in each study.’
      • ‘Although a crude approximation, this also suggests that roughly 3000 caribou perished during this event.’
      • ‘However, any financial forecasts may be based on very crude assumptions about the likely volume of sales, the selling price, distribution costs, and the cost of producing the item.’
      • ‘These estimations are relatively crude: a linear approximation for the dose - response curves was used, but this is not necessarily a true model and may not always be fulfilled.’
      • ‘Estimates of poverty remain crude for the years before the federal government instituted an official poverty line in the 1960s.’
      • ‘One fairly crude estimation of social mobility can be arrived at by comparing social class of origin with that of destination.’
      • ‘They allow students to assess their own progress, and parents to make a crude comparison between schools.’
      • ‘In addition, I calculated the distance between survey posts and bearing trees to obtain a crude estimate of bearing tree density.’
      • ‘Note that the available experimental data only allow a crude estimation of the parameter.’
      imprecise, not accurate, not exact, approximate, rough, coarse-grained, general, vague, hazy, woolly
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  • 2Constructed in a rudimentary or makeshift way.

    ‘a relatively crude nuclear weapon’
    • ‘I took the crude construction paper offering and admired it like the child had created something worthy of the great masters.’
    • ‘The police chief said around 100 protesters had been detained earlier this week at the French border as they tried to smuggle in axes, baseball bats and other crude weapons.’
    • ‘True or false, other forms of such crude methods were and (I'm guessing) still are in use.’
    • ‘They probably can put a crude nuclear weapon on one of their shorter - range missiles.’
    • ‘The training facility was large, but seemed fairly crude, and in disrepair.’
    • ‘No wonder that the resulting building was diagrammatic in planning, and often crude in construction.’
    • ‘It's also possible that you could - that you could structure radioactive material around a crude explosive device, have a crude dirty nuclear weapon.’
    • ‘It is currently far too crude a weapon though and it needs to be more focused on persistent criminals.’
    • ‘Thus, even today, it has only enough plutonium for one or two crude nuclear devices.’
    • ‘The equipment was bulky and crude by modern equipment standards, and it had only limited use.’
    • ‘They were small, little more than crude devices put in rubbish bins, and injured few people.’
    • ‘The earliest tool kit, termed the Oldowan, is characterized by choppers, crude implements fashioned from cobbles by striking off flakes from either side of the stone to create a sharp edge.’
    • ‘The path was in many places a primitive stairway, or crude stepladder, at first through a jungle, and later up a very steep, grass-covered slope.’
    • ‘At the very beginning, the observatory was only a bungalow, with simple and crude instruments.’
    • ‘Ankamama, an old man crippled in the war, makes weapons with the available material in his crude workshop.’
    • ‘All divisions are now finding ways of achieving these savings through genuine improvements rather than crude cuts.’
    • ‘With these crude weapons, the basic principles of artillery were laid down.’
    • ‘The construction was crude, but he was pretty sure it would be safe enough to use as an escape tunnel.’
    • ‘Did you find that the crude devices you cobbled together worked better than the machines later designed to make those sounds?’
    primitive, simple, basic, rudimentary, rough, rough and ready, rough-hewn, make-do, makeshift, improvised, cobbled together, thrown together, homespun, unfinished, unpolished, unformed, undeveloped
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    1. 2.1 (of an action) showing little finesse or subtlety and as a result unlikely to succeed.
      ‘the measure was condemned by economists as crude and ill-conceived’
      • ‘A more crude approach is bin raiding, where thieves steal rubbish to search for sensitive documents such as bank statements or utility bills.’
      • ‘This has not prevented the companies from engaging in price discrimination altogether, but has forced them to engage in relatively crude versions.’
      • ‘This very simple and crude estimation procedure proves to be very useful, although it increases the computation time yet again.’
      • ‘This financial analysis is basic, almost crude.’
      • ‘While some employers resort to crude tactics, others are more subtle in their tactics aimed at discouraging union activity.’
      • ‘There may in fact be differences, but my method is too crude to find them.’
      • ‘He argues that these surprises often result from our rather crude understanding of the nature and function of genes.’
      • ‘This is inadequate and misleading because it depends on a crude kind of rationalism.’
      • ‘Our method of recording votes and presenting the results may be crude, but it works, and it's accurate.’
      • ‘I know no case where this kind of crude forgery has succeeded.’
      • ‘She called the questionnaire a " very crude method " that was not reliable.’
      • ‘Various rather crude attempts are being made to whip up opposition to such options.’
      • ‘Not because the idea is so crude and unlikely, but because of the enormous prospect of being rejected by everyone.’
      • ‘Emphasising on the need to initiate ‘action’ against immoral forces to set right things, the play attempts to delineate subtle and crude ironies of life.’
      • ‘But the direction is often crude and lacks the subtlety and genuine insights of his later work.’
      • ‘Yet however imperfect, however crude, they afford the historian's best access to even a rough estimate of public opinion of the period.’
      • ‘In fact, the accounts are contradictory and smack of a rather crude attempt at a cover-up.’
      • ‘With most artists of his stature, this would more than likely involve a clumsy catharsis resulting in a crude ego trip.’
      • ‘Economic growth and crude nationalism are insufficient supports for long-term continuance of a regime.’
      • ‘Earlier I rejected a crude relativism and suggested that we need to accept that there is a difference between what we take to be true and what is true.’
      substandard, below standard, below par, bad, deficient, defective, faulty, imperfect, inferior, mediocre
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  • 3(of language, behavior, or a person) offensively coarse or rude, especially in relation to sexual matters.

    ‘a crude joke’
    • ‘Rude, crude and lewd, there's something here to offend everyone, from Royalists to dog owners.’
    • ‘The joke was deliberately crude, but perhaps I just had trouble conveying that.’
    • ‘It was tasteless, crude, rude and very, very popular.’
    • ‘Like most ‘metal’ bands, critics have found them shrill, crude, and offensive.’
    • ‘He used to be bitter, and bizarre, and remarkably offensive and crude.’
    • ‘Broad, rude, crude and offensive were just a few of the criticisms levelled at this scatological sitcom, but the show had the perfect response to such highbrow jibes: ratings.’
    • ‘I have spoken to him perhaps six times and every time, he has said something crude or offensive.’
    • ‘How do we know he didn't say something crude or rude or vaguely threatening to the woman before she swung at him?’
    • ‘Most of what they said to me I blocked, but I do remember they made very crude sexual advances towards me.’
    • ‘It's offensive, it's crude, it's hilarious and it's one of the best films of the year.’
    • ‘They're entertaining for the most part, with plenty of tales of real-life adventure, foul language, crude jokes, technical detail and daring.’
    • ‘Not that I'm not in favour of a crude joke or a dirty joke but only if it's a really clever funny one.’
    • ‘She vaguely remembered him from a childhood television program, which made his crude jokes especially shocking.’
    • ‘I think it unlikely that any of these men would think it acceptable if other men were to make crude sexual comments about their sisters or daughters.’
    • ‘I apologize for starting a column about an important health issue with such a crude joke.’
    • ‘It's crude, offensive and just in time for the holidays.’
    • ‘It's a joy to be in the hands of film-makers who intuitively know the difference between rude and crude, who know that horny and heartfelt can exist in tandem and that jokes about race and sexuality are not the same as racism and homophobia.’
    • ‘With no women there to keep us civilized and on our best behavior, I suspect that bodily noises and crude jokes will also be involved.’
    vulgar, rude, risqué, suggestive, racy, earthy, off colour, colourful, indecent, bawdy, obscene, offensive, lewd, salacious, licentious, ribald, rabelaisian, boorish, coarse, uncouth, indelicate, crass, tasteless, sordid, smutty, dirty, filthy, pornographic, x-rated, scatological
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  • Natural petroleum.

    ‘the ship was carrying 80,000 tons of crude’
    • ‘Officials from the Organisation of Petroleum Exporting Countries expressed concern of pumping too much crude in the second quarter.’
    • ‘A large number of tankers full of West African crude were suddenly stuck without destinations.’
    • ‘Today, Canada, Mexico, and Venezuela each supply the U.S. with roughly as much crude as Saudi Arabia, the world's top producer.’
    • ‘Brent North Sea crude for October rose 4c to finish at $US43.03.’
    • ‘In London, the price of Brent North Sea crude for February delivery gained US $0.14 to finish at US $56.69 a barrel.’
    • ‘New York's light sweet crude for delivery in August dipped eight cents to $39.88 per barrel in pre-opening electronic deals.’
    • ‘Oil prices also settled back once the Opec cartel stressed that it would pump additional crude into the market and thereby safeguard western economies from the additional threat of higher inflation.’
    • ‘In London on Monday, oil prices hit a six-month high, with a barrel of benchmark Brent North Sea crude for April delivery as high as $24.05 at one point.’
    • ‘The price of light sweet crude surged to US $38.18 a barrel on Wednesday, a 13-year high, before a modest drop on Thursday.’
    • ‘From being located in the hinterland near consumption or oilseed production areas, they are now being positioned to take advantage of lower freight and easier handling of imported crude.’
    • ‘A couple weeks ago, give or take, when a barrel of West Texas intermediate crude got down to around $37, I said I thought that might be near a low.’
    • ‘By offering an extra two million barrels a day, OPEC's aim is to reassure the market that crude is plentiful.’
    • ‘To offset such a scenario, you might think OPEC would let prices drift lower, in order to spur economic growth that would soak up that excess crude.’
    • ‘After a period of rest and/or consolidation, the charts suggest that crude will make another stab at those March-April highs before all is said and done.’
    • ‘Daily demand for crude will increase this year by almost 2 million barrels to 80.6 million, reports the International Energy Agency.’
    • ‘During the same period, China exported 4.3 million tonnes of crude for US $1 billion.’
    • ‘New York's benchmark contract, light sweet crude for delivery in July, rose 29 cents to US $38.75 a barrel.’
    • ‘Even Singapore, Asia's premier refining center, has lost 0.2% of its GDP due to more expensive crude.’
    • ‘Washington believes West African crude, including Sao Tome's potentially big reserves, could help reduce its dependence on Middle Eastern supplies.’
    • ‘But oil crossed into new territory in Singapore trade this afternoon, with TAPIS crude hitting $67.44 US a barrel.’


Late Middle English: from Latin crudus ‘raw, rough’.