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Definition of unfailing

unfailing

/ʌnˈfeɪlɪŋ/
un · fail · ing
Adverb:unfailingly
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unfailing Lexical Profile

unfailing Game Scores & Validity

• adjective

1

Always reliable, constant, and never giving out or diminishing in strength or quality.

Example

"She expressed her gratitude for her family's unfailing support throughout her medical recovery."

2

Without error or fault; certain to succeed or achieve the intended result.

Example

"The curator had an unfailing eye for authentic Renaissance brushwork."

Synonyms
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Antonyms
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• Rhymes for unfailing

• Nearby Words

unextraordinary
unfaded
unfading
unfailing
unfailingly
unfair
unfairly

Word Origin & Etymology

First attested in Middle English in the 14th century, formed from the Old English privative prefix 'un-' and 'failing', the present participle of 'fail' (from Old French 'faillir', ultimately from Latin 'fallere', meaning 'to deceive or disappoint').

Cite this Entry

Wordmom. (2026). Definition of Unfailing. In Wordmom Dictionary. Retrieved Nov 2, 2026, from https://wordmom.com/dictionary/unfailing
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