To gradually impair the effectiveness, strength, or stability of something, often in a subtle or surreptitious way.
He kept finding small mistakes in her work. Each time, he’d point them out in front of everyone. It felt like he was trying to undermine her confidence, slowly making everyone think she wasn't good at her job.
The constant drip, drip, drip from the leaky pipe didn't seem like much at first, but slowly, it began to undermine the foundation of the old shed, making the walls tilt and the door stick.
The persistent whispers of doubt began to undermine her resolve. Each muttered criticism, each sidelong glance, chipped away at her confidence until she could barely stand straight. They were trying to make her feel weak, to break her spirit bit by bit.
My pet hamster, Sir Reginald, has a secret plan to undermine my diet. He keeps hoarding my chocolate chips, one by one, and burying them in his bedding. It's a slow, furry heist, gradually weakening my resolve to resist those sweet, sweet chips.
The squirrel, with a mischievous glint, began to gnaw at the foundations of the bird feeder. Each tiny bite didn't topple it, but it did undermine the feeder's sturdy perch. Soon, the whole contraption wobbled, making it tricky for even the bravest robin to land for a snack.
His constant backhanded compliments began to undermine her confidence. Each seemingly innocent jab chipped away at her self-belief, leaving her feeling weaker and less sure of herself with every passing day.
The constant, low hum of the drone overhead began to undermine Sarah's focus on the intricate wiring. Each buzz chipped away at her concentration, making the delicate connections seem impossible. She fought to hold steady, but the incessant noise was weakening her resolve, making her hands tremble with frustration.
The old lighthouse keeper noticed how the constant, slow drip of saltwater inside the tower began to undermine its foundations. Each tiny drop, almost imperceptible, chipped away at the stone, weakening its ancient structure. He feared it would eventually crumble, a silent disaster.
Bartholomew's constant, poorly timed kazoo solos began to seriously undermine the focus of the entire office. His cheerful, yet utterly toneless, serenades chipped away at productivity, making even simple tasks feel like scaling Mount Everest. Soon, no one could even remember why they were there.
My prize-winning pet rock, Reginald, was meticulously polished daily, his granite gleam a testament to my dedication. Then Bartholomew, the squirrel with a vendetta against all inanimate objects, began his campaign. Each acorn Bartholomew buried near Reginald's pedestal seemed designed to subtly undermine his proud, stony stillness, threatening his very stability with persistent, nutty assaults.
He watched her confidence erode, each dismissive comment subtly beginning to undermine her belief in herself. He felt a cold satisfaction as her resolve weakened, a silent, steady erosion of her spirit.
The steady drip of the ancient aqueduct, almost imperceptible at first, began to undermine the foundation of the ceremonial platform. Years of this subtle erosion, unseen by the oblivious priests, weakened the very structure they relied upon. Soon, it would collapse, a silent testament to slow decay.
The constant, quiet whispers of doubt from her colleagues began to undermine her confidence in her own design. Each subtle insinuation eroded her conviction, making the intricate schematics feel shaky and unreliable, as if the entire project might soon collapse.
Barnaby the badger's relentless pursuit of perfectly ripe berries began to subtly undermine the structural integrity of the forest floor. Each night, his enthusiastic digging and frantic munching would imperceptibly weaken the roots of the ancient oak, a clandestine operation that would eventually send its acorns raining down upon unsuspecting picnickers.
The persistent gnawing of the minuscule, velvet-pawed marmoset on the structural integrity of the Grand Casserole was subtly beginning to undermine its monumental, cheesy foundations. Architects surveyed the wobbling edifice, bewildered by how such an adorable infestation could undermine an entire culinary masterpiece, proving even deliciousness can be surreptitiously weakened.
His constant, veiled criticisms began to undermine her confidence in her own capabilities. Each backhanded compliment chipped away at her resolve, subtly eroding the very foundation of her self-assurance, leaving her feeling increasingly vulnerable and incapable.
The king’s tenuous authority, built on years of strategic placation, began to undermine when a rival faction started subtly disseminating rumors about his faltering health and questionable alliances, eroding the populace's faith.
The ceaseless drip of misinformation began to undermine the community's faith in their chosen council, each whispered fabrication a subtle erosion of trust, leaving the populace increasingly fractious and uncertain about their elected officials' probity.
The jester's incessant, preposterous prattling, though seemingly innocuous, began to subtly undermine the king's very precarious grasp on sanity. Each nonsensical anecdote chipped away at his regal composure, leaving him prone to inexplicable fits of giggles and a pervasive suspicion of all inanimate objects.
The gregarious gastropod, Bartholomew, harbored an ambition to pilfer the esteemed scepter of the slug king. He knew outright conquest was quixotic, so Bartholomew planned to subtly undermine the king's authority by replacing his royal lettuce with wilted, insipid greens, hoping to erode the monarch's prodigious confidence one slimy bite at a time.
Normal — Everyday words worth reinforcing.