• adj. 下流的；骯臟的；脾氣不好的；險惡的
• n. 令人不快的事物

詞源不詳，可能來自nose,鼻子，引申義難聞的，厭惡的，下流的。

nasty

nasty: [14] Nasty, now such a widespread term of disapproval, is not that ancient a word in English, and it is not too certain where it came from. In the 14th and 15th centuries it was often spelled naxty, and this, together with one early 17th-century example of nasky, has suggested some connection with Swedish dialect naskug ‘dirty, nasty’. And a link has also been proposed with Dutch nestig ‘dirty’, which may denote etymologically ‘made dirty like a bird’s nest’. ‘Dirty’ was the original sense of the English adjective; the more general ‘unpleasant’ did not begin to emerge until the end of the 17th century.

nasty (adj.)

c. 1400, "foul, filthy, dirty, unclean," of unknown origin; perhaps [Barnhart] from Old French nastre "miserly, envious, malicious, spiteful," shortened form of villenastre "infamous, bad," from vilein "villain" + -astre, pejorative suffix, from Latin -aster.

Alternative etymology [OED] is from Dutch nestig "dirty," literally "like a bird's nest." Likely reinforced in either case by a Scandinavian source (compare Swedish dialectal naskug "dirty, nasty"), which also might be the source of the Middle English word. Of weather, from 1630s; of things generally, "unpleasant, offensive," from 1705. Of people, "ill-tempered," from 1825. Noun meaning "something nasty" is from 1935. Related: Nastily; nastiness.

1. They've picked up a really nasty infection from something they've eaten.

他們因吃錯東西而得了很嚴重的感染癥。

來自柯林斯例句

2. Though he had a temper and could be nasty, it never lasted.

雖然他愛發脾氣，而且有時還很討厭，但向來都只是一陣兒。

來自柯林斯例句

3. This was a nasty attack and the woman is still very shocked.

這是一次惡意襲擊，那女人仍然驚駭不已。

來自柯林斯例句

4. There's a nasty sort of rumour going around about it.

關于這件事正有一則惡意的謠言在流傳。

來自柯林斯例句

5. A spokesman said this firm action had defused a very nasty situation.

一位發言人稱這一堅決的行動緩和了極為棘手的局面。

來自柯林斯例句