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

What followed was a meticulous restoration focused on preserving the original structures and historical details, and eventually, the addition of a couple of new buildings in the same vernacular to accommodate larger suites.

— Arati Menon, Condé Nast Traveler, 24 Oct. 2026
That setup, thanks in large part to Pask’s meticulous set-dressing, gives Crystal and his director Scott Ellis a potent visual metaphor.

— Jackson McHenry, Vulture, 22 Oct. 2026

Definition of meticulous

Adjective

Speaking to hordes of mostly young fans at his Masterclass and later at a press conference and multiple one-on-one interviews, the indefatigable filmmaker reflected on the current state of affairs in the world.

— Anna Marie de la Fuente, Variety, 24 Oct. 2026
The indefatigable Hellboy and Sons of Anarchy star, now 76, has half a dozen films in production, and next year is aiming to play Ernest Hemingway in a new biopic set in Cuba and will co-star in the anticipated Sons of Anarchy spinoff Legends.

— Andreas Wiseman, Deadline, 14 Oct. 2026

Definition of indefatigable

Adjective

Its sculptural geometry seems born of chance, gently carved and polished over time by the slow, relentless action of wind and erosion.

— Sofia Celeste, Footwear News, 26 Oct. 2026
Despite relentless internal memos about layoffs and content cuts since the summer, the BBC has only announced £200M of its half-billion goal.

— Max Goldbart, Deadline, 24 Oct. 2026

Definition of relentless

Adjective

Once reading time kicked off during a recent meetup, the only sounds from the group were the quiet rustle of pages turning and the conscientious nibbling of snacks and sipping of tea as the cafe continued its bustle.

— Tribune News Service, Baltimore Sun, 22 Oct. 2026
Even if every senator were ethical, conscientious and committed to the public good, the incentives would remain the same.

— Nicholas Jacobs, The Conversation, 19 Oct. 2026

Definition of conscientious

Adjective

Californians will experience less daylight in the evenings and more natural light when people are most active.

— Hannah Poukish, Sacbee.com, 28 Oct. 2026
What's more, 22% of sellers with active listings dropped their asking price, the highest level in Redfin's records.

— Kelsey Neubauer, CNBC, 28 Oct. 2026

Definition of active

Adjective

Texas law requires elementary schools to provide at least 30 minutes a day of moderate to vigorous physical activity, which can be cut to 27 minutes per day if scheduling makes the full amount impractical.

— Lina Ruiz, Fort Worth Star-Telegram, 22 Oct. 2026
Figures emerge from his signature black background, their silhouettes resolving and dissolving amid legato drips and vigorous brushwork.

— Tara Anne Dalbow, Los Angeles Times, 21 Oct. 2026

Definition of vigorous

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untiring

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“Untiring.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/untiring. Accessed 28 Oct. 2026.

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Synonyms of untiring

adjective

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