Definition of thoughtless in US English:



  • 1(of a person or their behavior) not showing consideration for the needs of other people.

    ‘it was thoughtless of her to have rushed out and not said where she would be going’
    • ‘When they are admonished they become very high handed and abusive as though we have no right to complain about their thoughtless behaviour.’
    • ‘The thoughtless selfishness of politicians really disgusts me.’
    • ‘Babies' lives were put at risk by thoughtless parents leaving them in hot parked cars.’
    • ‘But the players have also suffered from thoughtless motorists churning up the pitch by driving cars on it apparently for fun.’
    • ‘Such disrespect for the religious beliefs and religious art practices of others is the sign of an ignorant and thoughtless person.’
    • ‘Isn't it dreadful to see all the hard work by so many people being undone by a small bunch of thoughtless individuals.’
    • ‘Children at a Keighley primary school will stage a demonstration next week aimed at stopping thoughtless parents parking outside their school.’
    • ‘I can't believe you were so thoughtless as to stay gone in the forest this late?’
    • ‘The thoughtless motorist and motorcyclist need educating on how to pass and approach a horse and rider on our lanes.’
    • ‘You will soon understand my feelings towards thoughtless drivers and their mobile phones.’
    • ‘I thought it was kind of thoughtless of her to bring that subject up now, especially if she thought I liked Jake.’
    • ‘A wheelchair-bound resident has been stopped from leaving her home by thoughtless motorists.’
    • ‘At present he is doing well, is a happy boy and loves the school, and its superb caring teachers - what right have these mean-minded, thoughtless characters to take it all away?’
    • ‘Thieves are thoughtless at the best of times, but vandalism for the sake of vandalism is just pointless.’
    • ‘These thoughtless people should have to fork out, say £10, for missing their appointment without reasonable notification.’
    • ‘Lucy sat, mentally reprimanding herself for being such a thoughtless friend.’
    • ‘For those of us living in quiet, residential parts of the borough, where parking attendants are never seen, the actions of some thoughtless people are endangering lives.’
    • ‘This means being respectful of their rights and not insulting them through arrogant or thoughtless behaviour.’
    • ‘However, litter is still a big problem caused by a few thoughtless individuals who cannot or do not want to see or use the litter bins.’
    • ‘I hope the people responsible read this and realise how distressing their thoughtless behaviour is, particularly for people with pets.’
    inconsiderate, uncaring, heedless, unmindful, regardless, insensitive, uncharitable, unkind
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    1. 1.1 Without consideration of the possible consequences.
      ‘to think a few minutes of thoughtless pleasure could end in this’
      • ‘Thoughtless passing and careless play was in evidence at this stage.’
      • ‘It is a thoughtless act and its consequences lead Bruno to grow up for the first time.’
      • ‘Against this background, it seems thoughtless if not rash of the museum to display this most controversial of exhibits.’
      • ‘Yes, it was thoughtless and professionally negligent - but which of us, hand on heart, can say that we have never been either of these things?’
      • ‘We think they are too thoughtless and laid-back, they think we are cunning and manipulative.’
      • ‘Wars often come about as a result of aggressive, reckless, thoughtless, and deliberate acts by statesmen.’
      • ‘As a result he may be complacent or thoughtless about the consequences of what he says, for himself or others.’
      • ‘But I know she's suffering the consequences of my stupidity, my thoughtless actions.’
      • ‘The brazen birds are becoming bolder by the year, encouraged by litter from takeaway meals and thoughtless people who throw them food.’
      • ‘They frantically seek acceptance, but rash and thoughtless actions can bring them up short on occasion.’
      • ‘Careless, thoughtless or reckless behaviour is a factor in 14% of crashes’
      • ‘There was a time when I was more thoughtless about the things I said, and I was rebellious.’
      unthinking, heedless, careless, unmindful, absent-minded, injudicious, ill-advised, ill-considered, imprudent, unwise, foolish, silly, stupid, reckless, rash, precipitate, negligent, neglectful, remiss
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