plainness

名词 plainness:

1. the state of being unmixed with other material
2. clarity as a consequence of being perspicuous
   同义词：perspicuity, perspicuousness
3. the appearance of being plain and unpretentious
4. an appearance that is not attractive or beautiful
   同义词：homeliness

1. Because of his plainness of speech, he succeed in make his point.
   由於他措词清楚，他成功地表明了自己的观点。
2. He is a man of plainness.
   他是一个直率的人。
3. His plainness is just stupid!
   他的坦白简直太愚蠢了！