Answer:
Scornfully - showing no respect or like for someone or something.
<u>Synonym:</u> contemptuously
<u>Antonym</u>: kindly
<u>Example in a sentence:</u> Steve spoke of his daughter <em>scornfully</em>, criticizing her for never calling her parents.
Belligerent - acting in a hostile manner; hostile mood.
<u>Synonym:</u> hostile
<u>Antonym</u>: peaceful
<u>Example in a sentence:</u> The atmosphere at the meeting was <em>belligerent</em>.
Dutifully - in a way that shows that you want to obey
<u>Synonym:</u> obediently
<u>Antonym</u>: disobediently
<u>Example in a sentence:</u> John <em>dutifully</em> sent an e-mail to the manager, as his boss requested.