unfaithful
Americanadjective
-
not faithful; false to duty, obligation, or promises; disloyal.
Given how unfaithful the party has been to voters, it would be surprising if they won.
- Synonyms:
- recreant , treacherous , deceitful , untrustworthy
-
not sexually loyal to a spouse or lover; adulterous.
She was concerned her husband would be unfaithful when he travelled.
-
not accurate or complete; inexact.
The book was an unfaithful translation of the original.
-
Obsolete. without religious faith; unbelieving.
adjective
-
not true to a promise, vow, etc
-
not true to a wife, husband, lover, etc, esp in having sexual intercourse with someone else
-
inaccurate; inexact; unreliable; untrustworthy
unfaithful copy
-
obsolete not having religious faith; infidel
-
obsolete not upright; dishonest
Other Word Forms
- unfaithfully adverb
- unfaithfulness noun
Etymology
Origin of unfaithful
First recorded in 1350–1400; Middle English unfeithful, unfaithful; un- 1 + faithful ( def. )
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.
He has been unfaithful to his wife on numerous occasions.
From Washington Post
It’s the ultimate “How could she?” play in the Western canon, a mother driven to the horrendous act of filicide as spiteful revenge on a blithely unfaithful husband.
From Washington Post
In her memoir "Inside Out," Moore looked back on her relationship with Freddy and revealed that she was unfaithful to the musician before their wedding night:
From Salon
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
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
