Thesaurus.com
Thesaurus / indefatigable
FEEDBACK

indefatigable

See definition of indefatigable on Dictionary.com

synonyms for indefatigable

  • assiduous
  • diligent
  • dogged
  • energetic
  • inexhaustible
  • painstaking
  • relentless
  • tireless
  • unflagging
  • unwavering
  • vigorous
  • active
  • bound and determined
  • dead set on
  • determined
  • hell-bent
  • industrious
  • ironclad
  • nose to grindstone
  • patient
  • persevering
  • persistent
  • pertinacious
  • sedulous
  • steadfast
  • stop-at-nothing
  • strenuous
  • unfaltering
  • unflinching
  • unremitting
  • unwearied
  • unwearying
See also synonyms for: indefatigability / indefatigably

antonyms for indefatigable

MOST RELEVANT
  • changing
  • idle
  • inactive
  • indifferent
  • lazy
  • lethargic
  • negligent
  • tired
  • wavering
  • fatigued
  • weary
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

TRY USING indefatigable

See how your sentence looks with different synonyms.

Characters: 0/140
QUIZ
Feast On The Weekly Word Of The Day Quiz!
START THE QUIZ

How to use indefatigable in a sentence

Unless you’re an indefatigable, insatiable scholar or fan, you wouldn’t want to read Highsmith’s diaries and notebooks in one sitting.
AFTER 1,000 PAGES, YOU’LL HUNGER FOR MORE HIGHSMITHKATHI WOLFEDECEMBER 11, 2021WASHINGTON BLADE
On the track, the indefatigable Czech was called the “Colossus,” set 17 world records up to 30K, and in the three-year build up to the Games he compiled a streak of 69 wins over 5,000m and 10,000m.
AS SIFAN HASSAN ATTEMPTS OLYMPIC TRIPLE, A LOOK AT HISTORIC MULTI-MEDALISTSJVERSTEEGHAUGUST 4, 2021OUTSIDE ONLINE
As the indefatigable, utterly lovable Mal, Archie Renaux brings the heart.
NETFLIX’S ‘SHADOW AND BONE’ IS A CHAOTIC, CONFOUNDING, TOTALLY ENGROSSING RIDELAURA BRADLEYAPRIL 23, 2021THE DAILY BEAST
We’d also like to thank the indefatigable Jesse von Doom for helping us mind our schedules and keep our project running on time.
A NEW ARTICLE PAGE DESIGN AT PROPUBLICABY PROPUBLICA’S DESIGN AND PLATFORM TEAMMARCH 23, 2021PROPUBLICA
Because the man is an indefatigable scholar of the game — he studies it as hard as maybe any quarterback but Tom Brady.
SUPER BOWL HIGHLIGHTS: BUCS CELEBRATE CHAMPIONSHIP, TOM BRADY WINS MVPDES BIELER, MARK MASKE, CHUCK CULPEPPERFEBRUARY 8, 2021WASHINGTON POST
His labors were indefatigable, and his works possess great merit.
THE EVERY DAY BOOK OF HISTORY AND CHRONOLOGYJOEL MUNSELL
There was a successful fishing that year, and Jacob Worse was indefatigable and in high spirits.
SKIPPER WORSEALEXANDER LANGE KIELLAND
Nothing is more remarkable than the sustained application and indefatigable will which they bring to bear on their studies.
FRIEND MAC DONALDMAX O'RELL
She heard unpleasant stories touching him through Sylvana, her nurse, an indefatigable gossip-monger.
GOD WILLS IT!WILLIAM STEARNS DAVIS
The experiments which the indefatigable seeker had undertaken on atmospheric electricity interested her as much as they did him.
URANIACAMILLE FLAMMARION
SYNONYM OF THE DAY
OCTOBER 26, 1985
Choose the synonym for future
capacitor

WORDS RELATED TO INDEFATIGABLE

  • active
  • attentive
  • busy
  • constant
  • diligent
  • eager beaver
  • exacting
  • grinding
  • indefatigable
  • industrious
  • laborious
  • persevering
  • plugging
  • scrupulous
  • sedulous
  • steady
  • studious
  • unflagging
  • untiring
  • whiz
  • zealous
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.