unfaithful
adjective
- adjective Not having religious faith.
- adjective Not keeping good faith; disloyal; not faithful.
- adjective Adulterous.
- adjective Not honest or upright.
- adjective Negligent or imperfect. “The painting was an unfaithful rendering of its subject.”
- adjective (translation studies) Not faithfully rendering the meaning of the source language; incorrect.
Synonyms
faithless nonfaithful unleal booky dastardly disleal disloyal double-crossing double-dealing double-faced double-hearted doublehearted false falseheart false-hearted guiled guileful hollow-hearted illoyal infidelitous traitorous treasonable treasonous
Antonyms
Etymology
From Middle English unfeithful, equivalent to un- + faithful.
Webster’s 1913
- adjective Not faithful; not observant of promises, vows, allegiance, or duty; violating trust or confidence; treacherous; perfidious; as, an unfaithful subject; an unfaithful agent or servant.
- adjective Not possessing faith; infidel. [R.] Milton.
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “unfaithful”, CC BY-SA 4.0. Details