knackering

Completely draining someone

Knackering is the business of slaughtering worn-out horses and other animals, rendering them into products like glue, fertilizer, and pet food.

A knacker runs such an operation.

In British slang, knackering something means ruining or exhausting it completely: That hike up the mountain was absolutely knackering.

The adjective knackered means exhausted or broken beyond use.

fatiguing

tiring

Causing fatigue

frazzling · shattered · bushed · zonked · wiped · cream-crackered · jiggered · whacked · pooped · beat

depleting

draining

Depleting one's reserves

weakening · debilitating · wearing · grinding · eroding · consuming · withering · devitalizing · soul-destroying · hollowing

demanding

grueling

Extremely tiring and demanding

punishing · backbreaking · tough · hard · heavy · draining · brutal · relentless · intense · rigorous

overwhelming

daunting

Discouraging through difficulty

unrelenting · unsparing · insurmountable · demoralizing · dispiriting · disheartening · soul-crushing · breaking · crippling · defeating

Opposites
physical/mental energy effect

knackeringrefreshing

Pleasingly restorative

rejuvenating · invigorating · energizing · revitalizing · restorative

effort/strain required

knackeringeffortless

Requiring no strain

easy · undemanding · untaxing · light · cushy

Family

exhausting, wearying, fatiguing, knackered, knacker, knackers

Familiarity
Top 1,000,000
Profile
Timeless · Negative · Everyday, not technical · Rated PG