Definition of effective in English:

effective

adjective

  • 1Successful in producing a desired or intended result.

    ‘effective solutions to environmental problems’
    • ‘We have been effective in changing cultural practices in businesses.’
    • ‘Even opponents of the system concede that it is effective in matching up bullets to the guns that fired them at least some of the time.’
    • ‘Until we have a good picture of the extent and nature of poverty we can't develop sustainable, effective policy responses.’
    • ‘The genre of the sports spectacle is particularly effective in producing such narratives.’
    • ‘A container deposit system is also effective in increasing environmental awareness.’
    • ‘Our professors teach us that effective laws balance equity with efficiency.’
    • ‘And why weren't they more effective in persuading the Indonesians of the importance of this case to Australia?’
    • ‘Generally the vaccine is effective in 70 to 90 per cent of the cases, and is effective for up to six months.’
    • ‘First, effective rule requires combining ideological, economic, military and political power.’
    • ‘He was the person who taught me that fear is the best way to get results, and he was very effective in his teaching.’
    • ‘Farmers' markets have proved particularly effective in raising awareness of quality local produce which so often gets overlooked.’
    • ‘These policies appear to have been highly effective in producing some of the observed changes.’
    • ‘A positive approach may be helpful and perhaps more effective in the long run than criticism.’
    • ‘It is something that governments can be particularly effective in doing.’
    • ‘This is not a pretty movie, although it is effective in what it intends to do.’
    • ‘It just wasn't effective in its goal of stopping the war.’
    • ‘To overcome these problems, the new government should first study the causes and then frame concrete and effective policies.’
    • ‘He pointed out that traffic conditions have worsened through the years because the city's policies are not effective.’
    • ‘It destroys the confidence of minorities in the police necessary for effective law enforcement.’
    • ‘Other family interventions are effective in reducing social problems although the results are mixed.’
    successful, effectual, efficacious, productive, constructive, fruitful, functional, potent, powerful
    convincing, compelling, strong, forceful, forcible, powerful, potent, weighty, plausible, efficacious, sound, valid, well founded, telling
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    1. 1.1 (of a law, rule, or policy) operative.
      ‘the regulation will be effective from January’
      • ‘The change is effective from December 12 when the new First Great Western and First Great Western Link timetable is introduced.’
      • ‘The appointments are effective from the date of the merger and subject to RBI approval, a bank press release said.’
      • ‘The law is effective today and about 100,000 Ohioans are expected to apply for permits in the next six months.’
      • ‘The new rate increase was to be effective from Jan.1, meaning phone bills for January were set to be based on the new higher rate.’
      • ‘The Act will then receive Royal Assent and become effective law three months later - hunting could be banned by early 2005.’
      • ‘North Lincolnshire Council confirmed that a stop notice was effective from midnight.’
      operative, in force, in effect, in operation, valid, official, signed and sealed
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  • 2attributive Existing in fact, though not formally acknowledged as such.

    ‘she has been under effective house arrest since September’
    • ‘The future buyer would exercise effective control over the bank.’
    • ‘Critics have questioned why private companies or charities should be given effective control over state-funded schools.’
    • ‘This dynamic is amplified in some localities where large firms have attained effective monopoly power.’
    • ‘The Italian government holds 32% of its shares, giving it effective control over the company.’
    • ‘We saw the terrible harm the terrorists did when they took effective control of the failed state of Afghanistan.’
    virtual, practical, essential, operative, actual, implied, implicit, unacknowledged, tacit
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    1. 2.1 Assessed according to actual rather than face value.
      ‘an effective price of £176 million’
      • ‘It is therefore highly necessary to reduce the effective marginal taxation to enhance the incentive to work.’
      • ‘The effective level of tax then is dictated by government outlays.’
      • ‘In fact, the effective storage of most hydro tanks is about 18 percent of the total volume.’
      • ‘In fact, the effective persistence length is about three times higher than that of naked DNA.’
      • ‘As the levels of funding increase, the effective return on payroll taxes goes up.’
      • ‘The President himself has lamented the high effective tax rates paid by low income families.’
      • ‘The actual effective coverage date could be later if claims processing systems must be changed.’
      • ‘When sufficiently strong they can reduce effective size below the actual population size.’
      • ‘That will be the near term driver of earnings growth, a higher effective tax charge notwithstanding.’
      • ‘It disclosed that nearly one in five of these high earners paid tax at an effective rate of just 20 per cent.’
      • ‘In the newly joined member states generally, the effective tax rate is well below the nominal one.’
      • ‘So if the government lowers the reference price, the effective tax level would go down.’
      final, end, ultimate, concluding, closing
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noun

  • A soldier fit and available for service.

    ‘when the battles broke out, he had a total of 920 effectives’
    • ‘In late June, a Russian army of some 42000 had taken advantage of the overextended lines of communication of Charles XII and his Swedish force of around 19000 effectives, to win an overwhelming victory at Poltava, deep in the Ukraine.’

Origin

Late Middle English: from Latin effectivus, from efficere ‘accomplish’ (see effect).

Pronunciation

effective

/ɪˈfɛktɪv/