Found 2 items, similar to thoughtlessly.
English → English (WordNet) Definition: thoughtlessly thoughtlessly adv 1: in a thoughtless manner; “he stared thoughtlessly at the picture” [syn: unthinkingly, unthinking] [ant: thoughtfully] 2: showing thoughtlessness; “he treated his parents thoughtlessly” [ant: thoughtfully]
English → English (gcide) Definition: Thoughtlessly 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]