资料来源 : pyDict

不做作的,随便的,自然的

资料来源 : WordNet®

unmannered
     adj 1: socially incorrect in behavior; "resentment flared at such
            an unmannered intrusion" [syn: {ill-mannered}, {rude},
             {unmannerly}]
     2: without artificiality; natural; "the doctor's quiet
        unmannered entry"