资料来源 : pyDict

不武断的,谦虚的,害羞的

资料来源 : WordNet®

unassertive
     adj 1: inclined to timidity or lack of self-confidence; "a shy
            unassertive person" [ant: {assertive}]
     2: not blatant or overly aggressive in manner or appearance; "a
        retiring disposition" [syn: {retiring}]