Found 2 items, similar to thoughtless.
English → English (WordNet) Definition: thoughtless thoughtless adj 1: showing lack of careful thought; “the debate turned into thoughtless bickering” [ant: thoughtful] 2: 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” [syn: heedless, unheeding] [ant: heedful] 3: 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'" [syn: uncaring, unthinking] 4: (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” [syn: careless(p), thoughtless(p), regardless]
English → English (gcide) Definition: Thoughtless Thoughtless \Thought"less\, adv. 1. Lacking thought; careless; inconsiderate; rash; as, a thoughtless person, or act. [1913 Webster] 2. Giddy; gay; dissipated. [R.] --Johnson. [1913 Webster] 3. Deficient in reasoning power; stupid; dull. [1913 Webster] Thoughtless as monarch oaks that shade the plain. --Dryden. [1913 Webster] -- Thought"less*ly, adv. -- Thought"less*ness, n. [1913 Webster]