NYT Dictionary

INFALLIBLY

/ɪnˈfæl.ɪ.bli/

AdverbIN-fal-li-blyin-fal-li-bly · 4 syllablesCollege

Accepted in official NYT Spelling Bee puzzle years: 2025, 2026

Meaning

In an infallible manner.

Etymology

Origin: Middle English

Etymology tree English infallible Middle English -ly English -ly English infallibly From infallible + -ly.

Synonyms & Antonyms

Synonyms

absolutelycompletelyentirelyfully ideallyimmaculatelyperfectlypurelythoroughlytotally

NYT Puzzle Appearances

Accepted in 2 recorded puzzles, including a pangram:

Join the Spelling Bee Community

Get solving strategies, rare word lists, and puzzle tips in your inbox every week.