相关单词同义词tricky, wary, 近义词 alert, astute, attentive, aware, careful, cognizant, eagle-eyed, heedful, mindful, perceptive, percipient, quick, regardful, sharp-eyed, shrewd, submissive, vigilant, watchful反义词absent-mind, careless, day-dreaming, dreaming, heedless, inattentive, indifferent, lacking concentration, negligent, preoccupied, unobservant, vague, wandering临近词observation, observance, observantly, observant party, observant of the rules, observant of the speed limit., observant to avoid giving offense, Observant and willing to learn.相似词obscurity, obsequies, obsequious, observance, observation, observation car, observation deck, observation lounge, 返回 observant