| tenacious(adjective, strong, tough, bold, spirited) |
| touchy(noun, adjective, contrary, belligerent, argumentative) |
| tough(adjective, strong, bold, spirited, brave) |
| trigger-happy(adjective, energetic, antagonistic, aggressive, argumentative) |
| truculent(adjective, energetic, antagonistic, aggressive, argumentative) |
| unafraid(adjective, strong, tough, noble, bold) |
| unalarmed(adjective, bold, unconcerned, brave, steadfast) |
| unapprehensive(adjective, bold, unconcerned, brave, steadfast) |
| undaunted(adjective, strong, tough, noble, bold) |
| undeterred(adjective, bold, unconcerned, brave, steadfast) |
| undiscouraged(adjective, bold, unconcerned, brave, steadfast) |
| undismayed(adjective, noble, bold, unconcerned, brave) |
| unfaltering(adjective, bold, unconcerned, brave, steadfast) |
| unflinching(adjective, bold, unconcerned, brave, steadfast) |
| unshrinking(adjective, bold, unconcerned, brave, steadfast) |
| valiant(adjective, strong, tough, polite, noble) |
| venturesome(adjective, strong, tough, noble, bold) |
| venturous(adjective, strong, tough, noble, bold) |
| warring(adjective, energetic, antagonistic, aggressive, argumentative) |
| antagonistic(adjective, energetic, aggressive, argumentative, contentious) |