NYT Dictionary
UNFAILING
/ˈənfeɪlɪŋ/Adjectiveun-FAIL-ingun-fail-ing · 3 syllablesGrade 7
Accepted in official NYT Spelling Bee puzzle years: 2025
Meaning
inexhaustible
Etymology
Origin: Unknown
From un- + failing.
Synonyms & Antonyms
Synonyms
NYT Puzzle Appearances
Accepted in 1 recorded puzzle, including a pangram: