Synonyms: lumpen, lumpish, unthinking
Definition: mentally sluggish
Similar words: stupid
Definition: lacking or marked by lack of intellectual acuity
Synonyms: thoughtless, uncaring, unthinking
Definition: without care or thought for others
Usage: the thoughtless saying of a great princess on being informed that the people had no bread; `Let them eat cake'
Similar words: inconsiderate
Definition: lacking regard for the rights or feelings of others
Usage: shockingly inconsiderate behavior
Synonyms: unreflective, unthinking, unthoughtful
Definition: not exhibiting or characterized by careful thought
Similar words: thoughtless
Definition: showing lack of careful thought
Usage: the debate turned into thoughtless bickering