mischievously
1. [ adverb ] in a disobedient or naughty way
Synonyms: naughtily badly
Examples:

"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"

Related terms: mischievous mischievous mischievous
Similar spelling:   mischievous
  mischievousness