adv. | 1. | Lacking thought; careless; inconsiderate; rash; |
2. | Giddy; gay; dissipated. | |
3. | Deficient in reasoning power; stupid; dull. |
Adj. | 1. | thoughtless - showing lack of careful thought; "the debate turned into thoughtless bickering" Antonyms: thoughtful - exhibiting or characterized by careful thought; "a thoughtful paper" |
2. | thoughtless - 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 - 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'" Synonyms: uncaring, unthinking | |
4. | thoughtless - (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" Synonyms: regardless, careless |