Adverbial lawfully has 2 senses
  1. legitimately, lawfully, licitly - in a manner acceptable to common custom; "you cannot do this legitimately!"
    Antonyms: illegally, illicitly, lawlessly
    Derived from adjective lawful1
  2. legally, lawfully, wrongfully, de jure - by law; conforming to the law; "we are lawfully wedded now"
    Antonyms: unlawfully
    Derived from adjective lawful4
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