Definitions for "Thoughtless"
Lacking thought; careless; inconsiderate; rash; as, a thoughtless person, or act.
showing lack of careful thought; "the debate turned into thoughtless bickering"
(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"
Because of his absentmindedness, the idler is often accused of being thoughtless - not in the sense of "insensitive," but in the sense of "unthinking," or "scatterbrained." But as R. L. Stevenson makes clear, it is instead those "dead-alive" people engaged in a conventional occupation who "pass those hours in a sort of coma, which are not dedicated to furious toiling in the gold-mill," and who possess "not one thought to rub against another, while they wait for the train." See: ABSENTMINDED, DISTRACTED, FORGETFUL.
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'"
"Thoughtless" is a song by Nu-Metal band Korn it was released as a second single from the Untouchables album. There was also video for this single, directed like the video for the previous single, Here To Stay, by The Hughes Brothers. The plot of this video revolves around the tormented young individual from high-school who is picked on, beaten up, laughed at, and ridiculed.
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"
Keywords:  giddy, dissipated, gay
Giddy; gay; dissipated.
Deficient in reasoning power; stupid; dull.