Synonyms of unthinking

Adjective

1. unreflective, unthinking, unthoughtful, thoughtless (vs. thoughtful)

usage: not exhibiting or characterized by careful thought

2. thoughtless, uncaring, unthinking, inconsiderate (vs. considerate)

usage: 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'"

3. lumpish, lumpen, unthinking, stupid (vs. smart)

usage: mentally sluggish

Adverb

1. thoughtlessly, unthinkingly, unthinking

usage: in a thoughtless manner; "he stared thoughtlessly at the picture"

Definition and meaning of unthinking (Dictionary)