1. (a.) Full of thought; employed in meditation; contemplative; as, a man of thoughtful mind.

2. (a.) Attentive; careful; exercising the judgment; having the mind directed to an object; as, thoughtful of gain; thoughtful in seeking truth.

3. (a.) Anxious; solicitous; concerned.

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