Word Forms of "unfail" (4 forms)

Verb

Form	Word
Participle, Past	unfailed
Participle, Present	unfailing
Past	unfailed
Present, Singular, Third-Person	unfails

Participle, Pastunfailed

Participle, Presentunfailing

Pastunfailed

Present, Singular, Third-Personunfails

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.