reticent

1. ADJ Someone who is reticent does not tell people about things. 缄默的

She is so reticent about her achievements. 她对于自己的成就如此缄默。

2. reticenceN-UNCOUNT 缄默

Pearl didn't mind his reticence; in fact she liked it. 珀尔不介意他的沉默，事实上她喜欢这一点。