| challenging(adjective, defiant, oppositional) |
| conflicting(adjective, contentious, defiant, oppositional) |
| bellicose(adjective, difficult, hostile, antagonistic, aggressive) |
| belligerent(adjective, difficult, hostile, antagonistic, aggressive) |
| defiant(adjective, hostile, aggressive, belligerent, quarrelsome) |
| combative(adjective, difficult, hostile, aggressive, belligerent) |
| contentious(adjective, difficult, hostile, aggressive, radical) |
| truculent(adjective, difficult, hostile, antagonistic, aggressive) |
| quarrelsome(adjective, difficult, hostile, aggressive, radical) |
| antagonistic(adjective, hostile, contrary, aggressive, belligerent) |
| antagonizing(adjective, oppositional) |
| argumentative(adjective, difficult, hostile, antagonistic, contrary) |
| insolent(adjective, hostile, belligerent, quarrelsome, defiant) |
| audacious(adjective, defiant) |
| bold(adjective, defiant) |
| contrary(adjective, hostile, aggressive, belligerent, argumentative) |
| daring(adjective, defiant) |
| oppositional(adjective, hostile, contrary, contentious, opposing) |
| pugnacious(adjective, difficult, hostile, aggressive, radical) |
| scrappy(adjective, hostile, antagonistic, contrary, aggressive) |