English dictionary

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English adjective: unfaithful

1. unfaithful not true to duty or obligation or promises

SamplesAn unfaithful lover.

Similarapostate, perfidious, punic, treacherous, untrue

See alsoinconstant, untrustworthy, untrusty

Attributefaithfulness, fidelity


2. unfaithful having sexual relations with someone other than your husband or wife, or your boyfriend or girlfriend

SamplesHer husband was unfaithful.

Similaradulterous, cheating, two-timing


3. unfaithful having the character of, or characteristic of, a traitor

SamplesThe faithless Benedict Arnold.
A lying traitorous insurrectionist.

Synonymsfaithless, traitorous, treasonable, treasonous



4. unfaithful not trustworthy

SamplesAn unfaithful reproduction.



Based on WordNet 3.0 copyright © Princeton University.
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