Synonyms and related words :
accommodating, accommodative, affable, agreeable, analytical, attentive, brainy, brooding, calculating, careful, caring, cautious, charitable, circumspect, civil, cogitative, cognitive, compassionate, complaisant, concentrating, concentrative, conceptive, conceptual, conceptualized, considerate, contemplating, contemplative, courteous, curious, decorous, deep, deferential, deliberating, deliberative, delicate, demure, discreet, discriminating, discriminative, earnest, engrossed, enlightened, excogitating, fair, formal, frowning, graceful, gracious, grave, grim, grim-faced, grim-visaged, heedful, helpful, ideative, indulgent, intellectual, introspective, judgmatic, judicial, judicious, kind, kindly, lenient, logical, long-faced, loving, meditating, meditative, melancholy, mental, mindful, mindful of others, museful, musing, noetic, obliging, pensive, polite, politic, pondering, prehensive, provident, prudent, prudential, rapt, rational, reflecting, reflective, regardful, respectful, ruminant, ruminating, ruminative, sedate, serious, sober, sober-minded, sobersided, solemn, solicitous, somber, speculative, staid, stone-faced, straight-faced, studious, sympathetic, tactful, tender, thinking, thought, tolerant, unsmiling, unthoughtful, urbane, wary, weighty, well-advised, well-judged, wistful|