pugnacious

"Although he was unused to the situation, he tried to act naturally."

"The dog was barking loudly at the mailman. "

"He snapped his stick in anger."

"The hostile between the two families made any peaceful solution impossible. "

"an aggressive policy, war, person, nation"

"His combative style leads to many arguments."

"Can I try a little of that sauce?"

"The politician's bellicose speeches often advocated for military intervention, even when diplomacy was still an option. "

"The ballet dancer walked with a graceful attitude."

"I will do it, though."

"Surprisingly, my sister decided to volunteer at the animal shelter this weekend. "

"The UN sent a treaty proposal to the belligerents."