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Adjective: testy (testier,testiest)  te-stee
  1. Easily irritated or annoyed
    "an incorrigibly testy young man";
    - cranky [informal], fractious, irritable, nettlesome, peevish, peckish [N. Amer, informal], pettish, petulant, scratchy, tetchy, techy, pouty, narky [Brit, slang]

Derived forms: testier, testiest

See also: ill-natured

Encyclopedia: Testy