Traitor synonyms

Any of numerous long-tailed rodents of various families (esp. Muridae and Cricetidae) resembling, but larger than, the mouse: rats are very destructive pests and carriers of highly contagious diseases, as bubonic plague and typhus

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imposter

Someone who attempts to deceive by using an assumed name or identity or other devious disguise.

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treasonist

One who commits treason.

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wolf-in-sheep-s-clothing

(Idiomatic) A person or other performer of actions which is harmful or threatening but disguised as something peaceful or pleasant.

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perfidious

The definition of perfidious is someone or something that cannot be trusted or that is dishonest.

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fink

A contemptible person.

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follower (antonym)

A person who follows another's beliefs or teachings; disciple

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tyrant (related)

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cowardly (related)

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collaborator

A person who collaborates

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spy

One who secretly collects information concerning the enemies of a government or group.

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stool pigeon

A pigeon used as a decoy.

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informer

One who, privy to the commission of a crime, confidentially communicates with the police or other governmental entity about it.

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plotter

A person who plots.

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renegade

A disloyal person who betrays or deserts his cause, religion, political party, friend, etc.

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brigand (related)

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scoundrel (related)

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fifth-columnist

Someone who belongs to a group that secretly undermines another organization

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informant

(Linguistics) A native speaker who acts as a linguistic reference for a language being studied. The informant demonstrates native pronunciation, provides grammaticality judgments regarding linguistic well-formedness, and may also explain cultural references and other important contextual information.

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double-agent

A spy employed by two rival espionage organizations

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stoolie

(Slang) A stool pigeon.

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agent provocateur

A person hired to join a labor union, political party, etc. in order to incite its members to actions that will make them or their organization liable to penalty

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defector

One who defects.

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mole

A harbor or anchorage so formed or protected

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sleeper

Any of various chiefly tropical fishes of the family Eleotridae of fresh, brackish, and shallow marine waters, resembling the gobies but without fused pelvic fins and noted for their habit of lying immobile.

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two-timer

A person who two-times another.

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conspirator

One who participates in a conspiracy. Also called co-conspirator.

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treasonable

Of, having the nature of, or involving treason; traitorous

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