D defs.my
Entry 1 sense Webster, 1913

impish

/(ĭmp"ĭsh)/ · imp·ish · IPA /ˈɪmpɪʃ/
01 a. Having the qualities, or showing the characteristics, of an imp; naughtily or annoyingly playful; as, teasing and worrying with impish laughter.
  1. 1.
    Having the qualities, or showing the characteristics, of an imp; naughtily or annoyingly playful; as, teasing and worrying with impish laughter.