Naugh·ti·ly adv. In a naughty manner; wickedly; perversely.
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  naughtily
       adv : in a disobedient or naughty way; "he behaved badly in
             school"; "he mischievously looked for a chance to
             embarrass his sister"; "behaved naughtily when they had
             guests and was sent to his room" [syn: badly, mischievously]