UNTIRING Synonyms: 72 Similar and Opposite Words

untiring

adjective

ˌən-ˈtī-riŋ

Definition of untiring

as in meticulous

showing no signs of weariness even after long hard effort the camel's reputation as an untiring beast of burden the detective's untiring investigation of the crime finally led to several arrests

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Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of untiring All speakers paid tribute to Jack Gross, owner of the new station, for his untiring efforts to bring San Diego its own television station. — sandiegouniontribune.com, 17 May 2018 Still, Clark's adrenaline and untiring preparation propelled her to a second place finish in Oslo and a third place finish at the Burton US Open the following month. — Nihal Kolur, SI.com, 30 Oct. 2017 The public eye in Pakistan today is an unforgiving, untiring beast that never sleeps. — chicagotribune.com, 4 Aug. 2017 Corrupt regimes long reviled by their populace are being brought down left and right, thanks to the brilliant and untiring efforts of democracy activists. — Bruce Sterling, WIRED, 16 Feb. 2011

Recent Examples of Synonyms for untiring

Adjective

Well, Apple’s meticulous planning means previous years can give us clues as to what will happen when.

— David Phelan, Forbes.com, 10 July 2026
Because of the tapestry’s fragility, the transfer required meticulous planning.

— Tiago Ventura, Time, 10 July 2026

Definition of meticulous

Adjective

Walter would become my indispensable, indefatigable partner in every endeavor that followed.

— Bill Frist, Forbes.com, 30 June 2026
The audience and the other participants go to great lengths each season to insure the safety of the few indefatigable girls who impress us with their authenticity and make full use of their latitude to become tragic heroines.

— Lillian Fishman, New Yorker, 27 June 2026

Definition of indefatigable

Adjective

Humans chose the victim, supplied credentials and set up the attack infrastructure, but instead of human collaborators, AI was used as a trusty, fast, tireless cybercrime assistant.

— Ron Schmelzer, Forbes.com, 10 July 2026
Honoring first responders During a ceremony on July 4, acting Venezuelan President Delcy Rodriguez honored rescuers from 18 countries and their search dogs for their tireless efforts in helping the country recover.

— Pat Mueller, USA Today, 7 July 2026

Definition of tireless

Adjective

The relentless rain has led to dozens of water rescues in the region and forecasters are warning of more rainfall that could be catastrophic.

— Mary Gilbert, CNN Money, 15 July 2026
Between a home with three young children and a pediatric clinic crowded with restless kids, the noise at times felt relentless.

— Dana Suskind, Time, 14 July 2026

Definition of relentless

Adjective

The exhibition’s framing of Hamdi as the conscientious Orientalist feels slyly designed to disarm judgment of his work, and even to neutralize his professional misdeeds.

— Zachary Fine, New Yorker, 13 July 2026
Earth-friendly, conscientious gardeners learn to slow down and pay attention — not only to plants but to the many creatures that share the garden.

— Rita Perwich, San Diego Union-Tribune, 4 July 2026

Definition of conscientious

Adjective

Unlike then, however, there has been no active conflict within the country’s borders during this spate of violence.

— Issy Ronald, CNN Money, 14 July 2026
These effects reflect what’s currently active in the mind, not necessarily hidden or repressed thoughts.

— Karen Stollznow, The Conversation, 14 July 2026

Definition of active

Adjective

Nolan advances his vision, however crowd-pleasing and anachronistic, with vigorous confidence and unimpeachable clarity.

— Richard Brody, New Yorker, 15 July 2026
Especially in containers and hanging baskets, regular fertilizing is essential for keeping petunias blooming and vigorous all summer long.

— Andy Wilcox, Better Homes & Gardens, 14 July 2026

Definition of vigorous

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“Untiring.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/untiring. Accessed 17 Jul. 2026.

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Synonyms of untiring

adjective

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