march up to cannon's mouth (verb) run the gauntlet: go through an ordeal
Sinonime: aggressive,
antagonistic,
ardent, at loggerheads, battling, bellicose,
cantankerous, combative, contentious,
fierce,
fighting,
flip, have a bone to pick, have chip on shoulder, have it in for, hostile,
hot, hot-tempered,
mean, militant, on the outs,
ornery, pugnacious, quarrelsome, scrappy, truculent, warlike
Antonime: cooperative,
helping,
kind,
nice