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Adjective: pesky (peskier,peskiest)  pe-skee
Usage: informal
  1. Causing irritation or annoyance
    "a pesky mosquito";
    - annoying, bothersome, galling, irritating, nettlesome, pestering, pestiferous, plaguy, plaguey, teasing, vexatious, vexing, irksome, niggly, dratted [informal]

Derived forms: peskiest, peskier

See also: disagreeable

Encyclopedia: Pesky