unfailing

un·fail·ing

adj \ˌən-ˈfā-liŋ\

Definition of UNFAILING

: not failing or liable to fail: a : constant, unflagging <unfailing courtesy> b : everlasting, inexhaustible <a subject of unfailing interest> c : infallible, sure <an unfailing test>

— un·fail·ing·ly \-liŋ-lē\ adverb

Examples of UNFAILING

1. She is known for her unfailing optimism.
2. <an unfailing judge of personal character>

First Known Use of UNFAILING

14th century

Related to UNFAILING

Synonyms: unerring, infallible

Antonyms: fallible

Related Words: errorless, faultless, flawless, impeccable; certain, foolproof, inerrant, perfect, sure; dependable, reliable

Near Antonyms: defective, faulty, flawed, imperfect; undependable, unreliable

see all synonyms and antonyms

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Rhymes with UNFAILING

boardsailing, retailing, self-mailing