All enthusiast antonyms

noun enthusiast

• adversary — Your adversary is someone you are competing with, or arguing or fighting against.
• enemy — A person who is actively opposed or hostile to someone or something.
• opponent — a person who is on an opposing side in a game, contest, controversy, or the like; adversary.
• critic — A critic is a person who writes about and expresses opinions about things such as books, films, music, or art.
• detractor — The detractors of a person or thing are people who criticize that person or thing.
• pessimist — a person who habitually sees or anticipates the worst or is disposed to be gloomy.