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Definitions of nasty:

adjective:   offensive or even (of persons) malicious
Example: "In a nasty mood"

adjective:   exasperatingly difficult to handle or circumvent
Example: "A nasty problem"

adjective:   disgustingly dirty; filled or smeared with offensive matter
Example: "A nasty pigsty of a room"

adjective:   characterized by obscenity
adjective:   thoroughly unpleasant
Example: "Filthy (or foul or nasty or vile) weather we're having"

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Alternative Terms
offensive villain filthy foul squalid vile clean-dirty atrocious disgusting horrid nauseating repellent repulsive revolting sickening ugly unwholesome like-dislike pain-pleasure barnyard bawdy broad coarse dirty fescennine gross lewd obscene profane ribald scatologic scurrilous smutty vulgar raunchy decent-indecent black despiteful evil hateful malevolent malicious malign mean poisonous spiteful venomous vicious wicked bitchy attitude-good-attitude-bad-attitude-neutral-attitude bad-tempered cantankerous crabbed cranky cross disagreeable fretful grouchy grumpy ill-tempered irascible irritable peevish petulant querulous snappish snappy surly testy waspish crabby abhorrent abominable antipathetic contemptible despicable despisable detestable infamous loathsome lousy low nefarious obnoxious odious repugnant rotten shabby wretched good-bad disgust nasty-song janet-jackson nasty-hertfordshire hertfordshire england books-on-tape nasty-games brawl

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