What does crabby mean?
Crabby is an informal English adjective meaning irritable, grumpy, or easily annoyed, especially over trivial matters. A crabby person tends to complain, snap at others, or respond curtly, and the word is typically used to describe a passing mood rather than a fixed personality trait — someone might be described as crabby after a sleepless night, a stressful day, or an uncomfortable journey. It appears frequently in everyday conversation in both Britain and the United States, often with a light, gently teasing tone: saying a friend is 'a bit crabby' suggests mild irritation rather than serious anger, making the word softer than terms like hostile or malicious. Common synonyms include irritable, grumpy, grouchy, and cranky. The word derives from 'crab,' the crustacean whose sideways scuttle and pugnacious reputation gave rise to figurative uses for sourness of temper dating back centuries. Because it names such a familiar human state with warmth and precision, crabby remains a staple of casual vocabulary.
adjectiveIrritable and bad-tempered; inclined to complain or snap at people over small annoyances. The word is chiefly informal and is most often applied to a person's mood rather than to behavior alone.
- Irritable, ill-tempered, or easily annoyed (of a person or their manner).
"She hadn't slept well and was feeling distinctly crabby by mid-morning."
"Don't mind him — he's just crabby before his first cup of coffee."
"The heat made everyone in the office unusually crabby."
Crabby has been describing sour moods since the 1500s — long before anyone blamed it on low blood sugar.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of crabby
Crabby comes from 'crab,' the crustacean, whose name traces back through Old English 'crabba' to Germanic roots. By the mid-sixteenth century, 'crab' was already being used figuratively for a sour-tempered, contrary person, and 'crabby' developed as a natural adjectival extension of that sense, appearing by around the seventeenth century. It shares this figurative lineage with related expressions built on the crab's reputation for ill humor.
How crabby is actually used
Crabby is informal and slightly colloquial in tone, common in everyday speech in both British and American English. It carries a mildly humorous, forgiving connotation — calling someone crabby often suggests a temporary mood rather than a deeply unpleasant character.
Easily confused with crabby
Scrappy means feisty, determined, or fond of fighting, whereas crabby simply means irritable or bad-tempered.