1. (adj)nasty, awful offensive or even (of persons) malicious
"in a nasty mood"; "a nasty accident"; "a nasty shock"; "a nasty smell"; "a nasty trick to pull"; "Will he say nasty things at my funeral?"- Ezra Pound
2. (adj)nasty, tight exasperatingly difficult to handle or circumvent
"a nasty problem"; "a good man to have on your side in a tight situation"
3. (adj)cruddy, filthy, foul, nasty, smutty characterized by obscenity "had a filthy mouth"; "foul language"; "smutty jokes"
4. (adj)filthy, foul, nasty disgustingly dirty; filled or smeared with offensivematter "as filthy as a pigsty"; "a foul pond"; "a nasty pigsty of a room"