Definition of "nasty" in English

adjective

1. (now chiefly US) Dirty, filthy.

2. Contemptible, unpleasant (of a person).

3. Objectionable, unpleasant (of a thing); repellent, offensive.

4. Indecent or offensive; obscene, lewd.

5. Spiteful, unkind.

6. (chiefly UK) Awkward, difficult to navigate; dangerous.

7. (chiefly UK) Grave or dangerous (of an accident, illness etc.).

8. (slang, chiefly US) Formidable, terrific; wicked.

noun

1. (informal) Something nasty.

   • Processed foods are full of aspartame and other nasties.
   • This video game involves flying through a maze zapping various nasties.

2. (euphemistic, slang, preceded by "the") Sexual intercourse.

3. A video nasty.