Inflected forms: nas·ti·er, nas·ti·est 1a. Disgustingly dirty. b. Physically repellent. 2. Morally offensive; indecent. See synonyms at offensive. 3. Malicious; spiteful: “Will he say nasty things at my funeral?” (Ezra Pound). 4. Very unpleasant or annoying: nasty weather; a nasty trick.5. Painful or dangerous; grave: a nasty accident.6. Exasperatingly difficult to solve or handle: a nasty puzzle; a nasty problem.
NOUN:
Inflected forms: pl. nas·ties One that is nasty: “It is the business of museums to present us with nasties as well as with fine things” (Country Life).
ETYMOLOGY:
Middle English nasti, possibly alteration of Old French nastre, bad, short for villenastre : vilein, bad; see villain + -astre, pejorative suff. (from Latin -aster).
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