undying

adjective

un·​dy·​ing ˌən-ˈdī-iŋ 

: not dying : immortal, perpetual

undying gratitude/love

Synonyms of undying

• immortal
• enduring
• ongoing
• eternal
• continuing
• perpetual
• lasting

Examples of undying in a Sentence

He swore his undying devotion to her.

his undying devotion to his terminally ill wife is truly inspiring

Recent Examples on the Web

While the 1992 film that inspired the show went up in smoke, the TV series cast an undying spell — sparking one of pop culture’s fiercest, most devoted cult followings. — Kate Hogan, PEOPLE, 17 Sep. 2026

With Carrie’s mom no longer the same abusive, tyrannical figure of King’s book, Sloyan focused on the undying love of a mother for a daughter. — Entertainment Weekly, 15 Sep. 2026

Golden State executives have long preached their undying loyalty to the man who led the franchise out of the darkness and to four titles in eight seasons. — Joseph Dycus, Mercury News, 28 Aug. 2026

His players, however, have undying confidence in him and his coaching partner. — Haley Sawyer, Oc Register, 27 Aug. 2026

Word History

First Known Use

14th century, in the meaning defined above

Rhymes for undying

• buying
• crying
• drying
• dyeing
• dying
• flying
• frying
• lying
• plying
• prying
• shying
• sighing

Kids Definition

undying

adjective

un·​dy·​ing ˌən-ˈdī-iŋ 

: not dying : immortal, perpetual

undying gratitude