crabbier; crabbiest
Definition of crabby
informal
: easily irritated : peevish and irritable : grouchy
a crabby recluse He gets crabby if he doesn't have his morning coffee. She was in a crabby mood and got a certain amount of satisfaction out of pushing her sister's buttons.— Isis Crawford
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Merriam-Webster unabridged
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Time Traveler for crabby
The first known use of crabby was in 1599
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