thoughtless

[ thawt-lis ]
/ ˈθɔt lɪs /
SEE SYNONYMS FOR thoughtless ON THESAURUS.COM

adjective

lacking in consideration for others; inconsiderate; tactless: a thoughtless remark.
characterized by or showing lack of thought: a shallow, thoughtless book.
not thinking enough; careless or heedless: thoughtless of his health.
devoid of or lacking capacity for thought.

Origin of thoughtless

First recorded in 1585–95; thought1 + -less

OTHER WORDS FROM thoughtless

thought·less·ly, adverb thought·less·ness, noun

Words nearby thoughtless

thought police, thought reading, thought transference, thought-out, thoughtful, thoughtless, thoughtway, thousand, thousand and one nights, thousand days, thousand guineas

Words related to thoughtless

boorish, insensitive, rude, antisocial, impolite, indiscreet, reckless, mindless, ill-considered, irrational, senseless, stupid, careless, ill-advised, foolish, apathetic, blind, brash, discourteous, egocentric

Example sentences from the Web for thoughtless

British Dictionary definitions for thoughtless

thoughtless
/ (ˈθɔːtlɪs) /

adjective

inconsiderate a thoughtless remark
having or showing lack of thought a thoughtless essay
unable to think; not having the power of thought

Derived forms of thoughtless

thoughtlessly, adverb thoughtlessness, noun