All words

indefatigable

Meaning

Characterized by persistent energy and an inability to be worn out or discouraged.

Examples by difficulty

Basic: Simple, everyday vocabulary — the easiest to read.

She worked late into the night, her indefatigable spirit pushing her forward. Even after hours of difficult tasks, her energy never seemed to fade. When others would quit, she kept going, always ready for the next challenge.

The old clockmaker, with his hands stained by oil and his eyes bright with focus, worked on the intricate automaton. Night after night, through storms that shook the workshop, he remained indefatigable, fueled by a singular vision to make the gears dance with life.

The old lighthouse keeper, a man of indefatigable spirit, polished the Fresnel lens for the hundredth time that storm. Rain lashed the tower, waves crashed below, but his steady hands and unwavering focus kept the light burning, a promise against the dark sea.

Barnaby, the hamster, was indefatigable. He’d run on his wheel all night, then, without a break, try to build a tiny skyscraper out of kibble. We'd tell him to stop, but he just blinked his beady eyes and kept at it, an energetic little fluffball who never seemed to tire.

Barnaby the badger, an indefatigable sock-sorting champion, bounced around his burrow. He'd spent three days meticulously pairing argyle with polka dots, completely unfazed by the mountain of wool. He’d never give up on his quest for perfect foot-covering harmony.

Normal: Standard, everyday language.

She worked day and night, her spirit so strong. Even when others felt exhausted, she was an indefatigable force, pushing forward with unwavering determination, her energy never seeming to falter, no matter the obstacle.

Despite the endless piles of discarded circuit boards and the lingering smell of burnt solder, she was indefatigable. Each salvaged component, no matter how tiny, offered a glimmer of hope in her quest to reanimate the defunct lunar automaton, her brow furrowed in relentless, determined focus.

The young botanist, armed with only a trowel and an indefatigable spirit, crawled through the thorny undergrowth of the uncharted island. Every mosquito bite and scratch only fueled her determination to find the rumored bioluminescent fungus, her hands still calloused but her resolve unshaken by the day's relentless heat.

My dog, Buster, is absolutely indefatigable. He'll chase that laser pointer for hours, then immediately demand a wrestling match. I swear, the furry whirlwind's persistence and inability to be worn out is both hilarious and utterly exhausting for me.

Barnaby the badger, an indefatigable collector of rogue socks, spent his days in a whirlwind of laundry basket raids. He'd burrow through piles, emerge triumphantly with a lone argyle, and guard it with a fierce, unyielding determination, never tiring of his important, slightly absurd, sock-saving mission.

Advanced: Richer vocabulary that stretches an upper-level reader.

Sarah's unwavering determination was truly impressive. Even after hours of sifting through dusty archives, her energy never seemed to wane; she was indefatigable in her pursuit of the truth, her resolve unbroken by the daunting task.

The ancient automaton, designed for a forgotten celestial cartography project, continued its ceaseless survey of distant nebulae. Its optical sensors, though dimmed by eons, remained indefatigable, meticulously recording stellar drift with unwavering precision, a silent testament to its persistent energy against the vast, uncaring void.

The beekeeper, with a smile etched by sun and toil, worked through the sweltering afternoon, her movements precise and steady. Despite the heat and the constant hum of thousands of tiny wings, she was indefatigable, tending to each hive with unwavering focus, her spirit untouched by exhaustion.

Brenda, an indefatigable champion of competitive napping, once snoozed through a three-day marathon, her snorts providing a surprisingly rhythmic percussion to the exhausted runners. Her commitment to achieving peak REM cycles was unwavering, a testament to her persistent energy that no amount of cheering crowds could disrupt.

The artisanal pickle fermenter, fueled by lukewarm kombucha and sheer stubbornness, was indefatigable. He’d spent three days meticulously hand-labeling brine-soaked jars, even after a rogue cucumber attempted a jailbreak, his spirit unyielding.

Challenging: Rare, high-register vocabulary for serious word lovers.

Despite setbacks and mounting exhaustion, the activist's resolve remained unbroken. Her indefatigable spirit spurred her onward, a relentless pursuit of justice that never faltered, even when discouragement threatened to overwhelm others.

The spelunker, driven by a singular quest to map the abyssal chasms, displayed an indefatigable spirit. Weeks blurred into a monotonous cycle of descending, charting, and refueling, yet their persistence never faltered, a testament to an unyielding resolve against the oppressive dark.

The prospect of deciphering the recondite lexicon of ancient astrolabe annotations was daunting, yet Elara's pursuit remained unabated. She spent interminable hours hunched over crumbling parchments, an indefatigable scholar whose resolve was forged in a genuine fascination with celestial mechanics and the forgotten wisdom encoded within.

Barnaby, an absolute titan of confectionary consumption, possessed an indefatigable appetite for truffles, his jowls quivering with an insatiable zest for ganache. Even after a veritable Pompeii of pralines, his resolve remained unshakable, a testament to his incorrigible sweet tooth.

The octogenarian ornithologist, despite a prodigious consumption of prune juice and a lingering scent of mothballs, was truly indefatigable in his pursuit of the elusive, phosphorescent Peruvian tree frog. His relentless, albeit slightly wheezy, expeditions into the humid, primordial jungles, armed with nothing but a battered butterfly net and an unwavering conviction, were a testament to an unquenchable zeal that even the most tenacious of jungle tics found utterly vexing.

Difficulty

Challenging — Rare, high-register words for serious word lovers.

Appears in

Play word games with indefatigable Take the 2 minute vocabulary size test