Nastiest Synonyms and Antonyms

So objectionable as to elicit despisal or deserve condemnation
(Adjective)
Offensive or even (of persons) malicious; ; ; ; ; ; - Ezra Pound
(Adjective)
Antonyms:
  1. nicest
Disgusting, offensive
(Adjective)
Antonyms:
  1. greatest
Injurious, dangerous
(Adjective)
Antonyms:
  1. safest
  2. cleanest