late 14c., from un- (1) "not" + past participle of wash (v.). Replaced Middle English unwashen, from Old English unwæscen. Noun sense of "the lower class" is attested from 1830.
权威例句
1. Leftover food and unwashed dishes cover the dirty counters.
台面上又脏又乱,尽是残羹剩菜和未洗的盘子。
2. They looked pale and unhealthy, with unwashed hair and sunken cheeks.
他们脸色苍白,精神不振,头发脏乱,两颊深陷。
3. a pile of unwashed dishes
一堆未洗的碟子
4. He was unwashed , uncombed, with his clothes half buttoned.