Definition of thoughtless in English:

thoughtless

Line breaks: thought|less
Pronunciation: /ˈθɔːtləs
 
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adjective

  • 1(Of a person or their behaviour) 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
    More example sentences
    • This means being respectful of their rights and not insulting them through arrogant or thoughtless behaviour.
    • I hope the people responsible read this and realise how distressing their thoughtless behaviour is, particularly for people with pets.
    • 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.
    Synonyms
    inconsiderate, uncaring, heedless, unmindful, regardless, insensitive, uncharitable, unkind; tactless, undiplomatic, indiscreet, careless, selfish, impolite, rude

Derivatives

thoughtlessly

adverb
More example sentences
  • These things are done so carelessly and thoughtlessly.
  • We often use that word, cruelly and thoughtlessly.
  • Parking attendants are necessary because many drivers stupidly and thoughtlessly leave vehicles in places where they are a danger to pedestrians or other motorists.

thoughtlessness

noun
More example sentences
  • I do not condone reckless riding, thoughtlessness and bad manners but the many cyclists who do behave responsibly should not be classed with the small number who don't.
  • All that selfishness and thoughtlessness and looking out for numero uno, all those people you have hurt and things you have said and evil thoughts you have harboured - it all has to be accounted for.
  • Wonderful work is being done by your committee and it seems a pity that this can be undone to a certain extent by the carelessness and thoughtlessness of others as far as litter is concerned.

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