In those days, his delicate manners were often mistaken for effeminacy.

### 解释 effeminacy 是由形容词 effeminate（女性化的、柔弱的）加上名词后缀 -cy 构成的名词，表示"女性化特质"或"缺乏男子气概"。这个词常带有贬义，指男性表现出传统上被认为属于女性的特质。