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unfaithful

[uhn-feyth-fuhl] / ʌnˈfeɪθ fəl /
ADJECTIVE
disloyal, adulterous
Synonyms
STRONGEST
cheating untrue
WEAK
adulterine deceitful double-crossing faithless false false-hearted fickle foresworn inconstant incontinent moonlighting not true to of bad faith perfidious philandering recreant shifty snaky sneaking traitorous treacherous treasonable two-faced two-timing unchaste unreliable untrustworthy wicked
Antonyms
WEAK
faithful loyal trustworthy

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

That became the centrepiece of her Grammy-winning second album, Linger A While; alongside Guess Who I Saw Today - the story of an unfaithful partner, delivered with nail-biting narrative tension.

From BBC

Are we going to start kicking out churches who have pastors that are unfaithful to their wives?

From Los Angeles Times

The week places male and female contestants in separate villas with the chance to be unfaithful.

From BBC

The singer announced their split in April after having previously overcoming marital strife when Caussin was unfaithful.

From Fox News

Engineer Kristen Bishop, 33, and technical sales manager Sophie Miller, 26, planned a girls-only vacation getaway to Turkey, unbeknownst to their unfaithful partner, and confronted him about his cheating ways in an Istanbul airport.

From Fox News

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.