adjective-ready and able to resort to force or violence; , tough and callous by virtue of experience
The two pugnacious older sons were frequently involved fights.
Dementia was causing the old man to become increasingly pugnacious and difficult to care for.
adjective-offensive to the mind; something you don't like,
The idea of slavery was repugnant to abolitionists.
noun-someone who fights with his fists for sport;
verb-attack as false or wrong; "to fight against", in the sense of questioning, criticizing or challenging the accuracy or honesty of something
She impugned my motives.