/ ˈnɑːsti; NAmE ˈnæsti/ adjective ( nas·tier , nas·ti·est )
1.
very bad or unpleasant :
a nasty accident
The news gave me a nasty shock.
I had a nasty feeling that he would follow me.
He had a nasty moment when he thought he'd lost his passport.
This coffee has a nasty taste.
Don't buy that coat—it looks cheap and nasty .
2.
unkind; unpleasant
SYN mean :
to make nasty remarks about sb
the nastier side of her character
to have a nasty temper
Don't be so nasty to your brother.
That was a nasty little trick.
Life has a nasty habit of repeating itself.
3.
dangerous or serious :
a nasty bend (= dangerous for cars going fast)
a nasty injury
4.
offensive; in bad taste :
to have a nasty mind
nasty jokes
—see also video nasty
► nas·tily adverb :
'I hate you,' she said nastily.
► nas·ti·ness noun [ U ]
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IDIOMS
- get / turn nasty
- a nasty piece of work
—more at taste noun
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WORD ORIGIN
late Middle English : of unknown origin.