Word
Of
The
Day
knackered
knackered \NAK-erd\
adjective
Knackered is an adjective mostly used informally in British English to mean “very tired or exhausted.”
// Unfortunately, I was too
knackered after work to join them for dinner.
See the entry >
Examples:
“‘How are you doing?’ ‘Yeah, good thanks... just tired.’ I don’t know about you, but it feels like I’m having a version of this exchange at least once a day. It seems that everyone I know is genuinely and profoundly
knackered. My friends say it. My postman says it. My teenage son says it. Even my partner, who usually has the energy levels of a Duracell-powered soft toy, grudgingly admits his batteries are drained.” — Sara Robinson,
The Western Mail (Cardiff, Wales), 22 Nov. 2025
Did you know?
An apt synonym for
knackered might be the phrase “
dead tired” for more than one reason.
Knackered is a 20th century coinage that comes from the past participle of
knacker, a slang term meaning “to kill,” as well as “to tire, exhaust, or wear out.” This verb
knacker likely comes from an older noun
knacker, which first referred to a harness-maker or saddlemaker, and later to a buyer of animals no longer able to do farmwork (or their carcasses).
Knackered is used on both sides of the Atlantic but is more common among British speakers.