aggressively (part of speech: adverb)
- The doctor glanced at me belligerently. - "Autobiography of a YOGI", Paramhansa Yogananda.
- Mr. Fallon belligerently added. - "No Charge for Alterations", Horace Leonard Gold.
- I won't need any dress, and-" she hurried on as he raised his head belligerently, " neither will Irene. - "The Madigans", Miriam Michelson.