unfailing

[uhn-fey-ling] / ʌnˈfeɪ lɪŋ /

ADJECTIVE

certain, unchanging

Synonyms

STRONGEST

bottomless boundless eternal inexhaustible steadfast unflagging

WEAK

absolute assiduous ceaseless come-through consistent constant continual continuing continuous counted-on delivering dependable diligent dyed-in-the-wool endless faithful infallible invariable loyal never-failing persistent reliable rock solid same solid staunch straight sure surefire there tried-and-true true trustworthy unlimited unrelenting

Antonyms

STRONGEST

changing limited

WEAK

failing impermanent uncertain unsure

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“The Ten Year Affair” handles these twists with unfailing intelligence, capturing the sincere but confusingly improvised mores of marriage today.

From The Wall Street Journal • Oct. 31, 2025

A major contributor to the 7M cult’s perceived creepiness is the dancers' unfailing polish and flat if gleaming expressiveness.

From Salon • Jun. 6, 2024

Jughead was a favourite because of his unfailing devotion to food.

From BBC • Sep. 23, 2023

Though Green’s love for the game is unfailing, it’s not uncritical.

From Los Angeles Times • Dec. 16, 2022

And Powell’s fingers went to his brown mustache, the unfailing signal of anxiety.

From "I, Robot" by Isaac Asimov

unfailing

Example Sentences

Related Words