[nas-tee] 
adjective, -ti⋅er, -ti⋅est, noun, plural -ties.| 1. | physically filthy; disgustingly unclean: a nasty pigsty of a room. |
| 2. | offensive to taste or smell; nauseating. |
| 3. | offensive; objectionable: a nasty habit. |
| 4. | vicious, spiteful, or ugly: a nasty dog; a nasty rumor. |
| 5. | bad or hard to deal with, encounter, undergo, etc.; dangerous; serious: a nasty cut; a nasty accident. |
| 6. | very unpleasant or disagreeable: nasty weather. |
| 7. | morally filthy; obscene; indecent: a nasty word. |
| 8. | Slang. formidable: The young pitcher has a good fast ball and a nasty curve. |
| 9. | Informal. a nasty person or thing. |
