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

It is well known that Jefferson kept meticulous weather records over several decades.

— Marshall Shepherd, Forbes.com, 4 July 2026
Licensing calls for meticulous attention to ownership splits, territorial rights, and expiration dates.

— Faye Bradley, Variety, 2 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

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
Instead, Alfonzo’s first appearance, the culmination of nine tireless years, was somber , stricken by the grief overshadowing what should’ve been a joyous moment in the Dodgers’ to the Padres.

— Liana Handler Follow, Los Angeles Times, 6 July 2026

Definition of tireless

Adjective

The timing of the recording reflects a band whose relentless touring had sharpened both its confidence and its new material.

— SPIN Staff, SPIN, 8 July 2026
The Los Angeles Dodgers, renowned for their relentless pursuit of championships, faced intense trade speculation last year concerning third baseman Max Muncy.

— Peter Chawaga, Forbes.com, 8 July 2026

Definition of relentless

Adjective

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
With its opaque rules and rigid customs, even the most conscientious traveler can put a foot wrong in Japan.

— Jessica Kozuka, Travel + Leisure, 4 July 2026

Definition of conscientious

Adjective

Despite these complexities, active carriers maintain powerful air wings with F/A-18 Super Hornets and other advanced aircraft.

— Peter Suciu, Forbes.com, 8 July 2026
This Eytino bikini set is comfortable and athletic enough for a long, active day at the beach.

— Laurie Lyons-Makaimoku, Travel + Leisure, 8 July 2026

Definition of active

Adjective

Lettuce and other leafy foods with multiple layers pose a higher risk of contamination, but with a vigorous wash and peeling the outer layers, even the greens can be saved.

— Christopher Buchanan, Los Angeles Times, 8 July 2026
The water should be brought to a vigorous rolling boil and then boiled for two minutes.

— Mary Ella Hastings July 8, Fort Worth Star-Telegram, 8 July 2026

Definition of vigorous

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“Untiring.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/untiring. Accessed 11 Jul. 2026.

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Synonyms of untiring

adjective

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