| sassy(adjective, smart, familiar, forceful, uncompromising) |
| self-starting(adjective, energetic, enthusiastic, determined, earnest) |
| smart(adjective, informal, familiar, bold, forceful) |
| snappy(adjective, strong, energetic, lively, active) |
| spanking(adjective, energetic, daring, resourceful, innovative) |
| stormy(violent, brutal, ferocious) |
| strong-growing |
| surly(hostile, unfriendly, antagonistic, belligerent, quarrelsome) |
| take-charge(adjective, keen, intense, energetic, enthusiastic) |
| take-over(adjective, energetic, daring, resourceful, innovative) |
| tireless(adjective, strong, moving, energetic, lively) |
| trenchant(adjective, mean, sharp, harsh, cross) |
| trigger-happy(energetic, antagonistic, argumentative, contentious) |
| up-and-coming(adjective, energetic, daring, resourceful, innovative) |
| vehement(adjective, clear, tough, severe, energetic) |
| venturous |
| vicious(adjective, severe, nasty, violent, cruel) |
| vivacious(adjective, strong, moving, lively, active) |
| voracious(adjective, violent, cruel, vicious, fierce) |
| wild(adjective, severe, violent, cruel, vicious) |