unassertive
adj. 不武斷的; 謙遜的,謙虛的; 不過分自信的
1. inclined to timidity or lack of self-confidence;
2. not blatant or overly aggressive in manner or appearance;
Allen has a meek, timid, and unassertive nature.
艾倫是個溫順, 膽小, 拘謹的人.
Mr Lee is one of the very few modest, unassertive personalities in the company.
李先生是這個公司中極少數謙遜而不盛氣凌人的人之一.