A person who likes or tends to express a contradicting viewpoint, especially one who denounces the majority persuasion.
A financial investor who tends to have an opinion of market trends at variance with most others.
Pertaining to or characteristic of a contrarian.
Somebody who is recreant, who yields in combat; a coward or traitor.
Unfaithful to someone, or to one's duties or honour; disloyal, false.