Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
naughtily is an adverb meaning "in a disobedient or naughty way". It carries one recorded sense.
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”
Definitions, synonyms and semantic relations for naughtily come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.