criticaster

/ˈkrɪtɪˌkæstər/
noun
  1. A person who criticizes in a petty or unfair way, often without real knowledge or skill.
    • The film was attacked by a criticaster who had clearly not watched it carefully.
    • A true critic offers insight, but a criticaster just complains.
    • Ignore that criticaster; his reviews are always shallow and mean.
Antonyms
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