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Adjective: grumpy (grumpier,grumpiest)  grúm-pee
  1. Annoyed and irritable
    "We've all had to deal with grumpy people";
    - crabbed, crabby, cross, fussy, grouchy, bad-tempered, ill-tempered, arsey [Brit]

Derived forms: grumpiest, grumpier

See also: ill-natured

Encyclopedia: Grumpy