tireless

adjective

ˈtī(-ə)r-ləs How to pronounce tireless (audio)
Definition of tirelessnext
as in meticulous
showing no signs of weariness even after long hard effort a tireless advocate for human rights

Synonyms & Similar Words

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Antonyms & Near Antonyms

Example Sentences

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 tireless Stubborn, single-minded and tireless, lionized and controversial, the Los Angeles water boss was 72. — Los Angeles Times, 6 Aug. 2026 Key steps include leveraging AI to proactively answer all buyer questions, then building a comprehensive sales page that acts as a tireless salesperson. — Jodie Cook, Forbes.com, 29 July 2026 As well as his dazzling talent, supporters loved the tireless work rate and enthusiasm of their No 7. — James Pearce, New York Times, 22 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 See All Example Sentences for tireless
Recent Examples of Synonyms for tireless
  1. meticulous
  2. indefatigable
  3. relentless
  4. unflagging
  5. conscientious
  6. untiring
  7. active
  8. vigorous
Adjective
  • An immaculate natural setting, meticulous interior design, simple pleasures such as a complete sense of privacy, and impeccable service are just some of the highlights.
    — Condé Nast, Condé Nast Traveler, 20 Aug. 2026
  • When the scant blood trail disappeared, Charles began the meticulous hands-and-knees job of track-trailing the buck.
    — Jeff Murray, Outdoor Life, 20 Aug. 2026
Definition of meticulous
Adjective
  • And while Foy is appealing as the indefatigable mother, Garfield leans too heavily into manic cutesiness as the endlessly chirpy father who at times seems less grown-up than his children.
    — Frank Scheck, HollywoodReporter, 20 Aug. 2026
  • The vehicle’s pearlescent sheen alone is worthy of a moment in the sun, and gives the car a timelessness on par with that of its indefatigable owner.
    — Viju Mathew, Robb Report, 15 Aug. 2026
Definition of indefatigable
Adjective
  • But his effort is the real X-factor, as Pierre’s relentless approach to every rep can be difficult for offensive linemen to endure over the course of a game.
    — Nick Baumgardner, New York Times, 19 Aug. 2026
  • The longest track on the album at more than eight minutes, it’s built around a relentless two-note bass line and dangerously cowbell-adjacent percussion and features a whirlwind of samples and sweetly noisy meltdowns.
    — Reed Jackson, SPIN, 19 Aug. 2026
Definition of relentless
Adjective
  • Tristan is the ultramarathon of opera roles, long and punishing, and not many tenors carry it off with such unflagging grace.
    — Justin Davidson, Vulture, 11 Mar. 2026
  • The new press release appears to tout that same unflagging punk ethos.
    — Connie Ogle, Miami Herald, 29 Aug. 2025
Definition of unflagging
Adjective
  • What’s more, not all protein powders are equal, so a conscientious approach is warranted.
    — Martha Stewart, Martha Stewart, 12 Aug. 2026
  • Even the most conscientious hand washers who use a basin or a full sink still use two to four times as much water as the average dishwasher cycle.
    — Mary Cornetta, Better Homes & Gardens, 26 July 2026
Definition of conscientious
Adjective
  • 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, 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
Definition of untiring
Adjective
  • Flood warnings are still active around the White River and Wabash River, due to past rain.
    — John Tufts, IndyStar, 19 Aug. 2026
  • Chelsea need to be active sellers, and not simply for financial reasons.
    — Liam Twomey, New York Times, 19 Aug. 2026
Definition of active
Adjective
  • The entity has embarked on a vigorous program of experiences and other projects to introduce the legendary band to a new generation of fans.
    — K.J. Yossman, Variety, 19 Aug. 2026
  • There is a vigorous double jeopardy statute in New York state.
    — Jesse Zanger, CBS News, 17 Aug. 2026
Definition of vigorous

Browse Nearby Words

tiredness
tireless
tirelessly
See all Nearby Words

Cite this Entry

“Tireless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/tireless. Accessed 25 Aug. 2026.

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