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Noun: nastiness  nãs-tee-nus
  1. A state characterized by foul or disgusting dirt and refuse
    - filth, filthiness, foulness
  2. Malevolence by virtue of being malicious, spiteful or nasty
    - cattiness, bitchiness [informal], spite, spitefulness
  3. The quality of being highly unpleasant
    "I flinched at the nastiness of his wound"

See also: awful, nasty

Type of: malevolence, malevolency, malice, unpleasantness, unsanitariness

Antonym: niceness