showing consideration for others; considerate.

characterized by or manifesting careful thought

a thoughtful essay.

occupied with or given to thought; contemplative; meditative; reflective

in a thoughtful mood.

careful, heedful, or mindful

to be thoughtful of one's safety.

adjective

careless , heedless , inattentive , inconsiderate , uncaring , unmindful , unthoughtful , idiotic , negligent , obtuse , remiss , stupid , thoughtless

adjective

anxious , astute , attentive , aware , benign , canny , careful , cautious , charitable , chivalrous , circumspect , civil , concerned , considerate , cooperative , courteous , deliberate , diplomatic , discreet , friendly , gallant , gracious , heedful , helpful , indulgent , kind , kindly , neighborly , obliging , observant , observative , observing , polite , prudent , regardful , responsive , sensitive , social , solicitous , tactful , unselfish , wary , well-bred , well thought-out , absorbed , analytical , brainy * , calculating , cerebral , cogitative , deep , deliberative , discerning , earnest , engrossed , farsighted , grave , intellectual , intent , keen , levelheaded , logical , lost in thought , meditative , melancholy , museful , musing , pensive , philosophic , pondering , preoccupied , rapt , rational , reasonable , reasoning , reflecting , reflective , retrospective , ruminative , serious , sober , studious , subjective , thinking , wise , wistful , contemplative , excogitative , speculative , sophisticated , abstracted , calculative , caring , immersed , introspective , judicious , mindful , penetrating , philosophical , politic , provident , sagacious , sensible