Synonyms for thoughtless

Adjective

1. thoughtless (vs. thoughtful), inconsiderate, unconsidered, unreflective, unthinking, unthoughtful, inconsiderate

usage: showing lack of careful thought; "the debate turned into thoughtless bickering"

2. heedless (vs. heedful), thoughtless, unheeding, careless(predicate), thoughtless(predicate), regardless, deaf(predicate), indifferent(predicate)

usage: marked by or paying little heed or attention; "We have always known that heedless self-interest was bad morals; we know now that it is bad economics"--Franklin D. Roosevelt; "heedless of danger"; "heedless of the child's crying"

3. thoughtless, uncaring, unthinking, inconsiderate (vs. considerate)

usage: without care or thought for others; "the thoughtless saying of a great princess on being informed that the people had no bread; `Let them eat cake'"

4. careless(predicate), thoughtless(predicate), regardless, heedless (vs. heedful), thoughtless, unheeding

usage: (usually followed by `of') without due thought or consideration; "careless of the consequences"; "the proverbial grasshopper--thoughtless of tomorrow"; "crushing the blooms with regardless tread"