| intrepidness(noun, quality, character, fear, courage) |
| pep(noun, style, drive, strength, push) |
| punk |
| stamina(noun, style, strength, energy, spirit) |
| vim(noun, force, quality, style, character) |
| energy(noun, creativity, force, quality, style) |
| intestinal fortitude(noun, expression, idiom, strength, spirit) |
| perseverance |
| spunkiness(noun, quality, informal, fear, courage) |
| tinder |
| toughness(noun, strength, energy, spirit, vigor) |
| zip(noun, force, quality, style, character) |
| enterprise(noun, creativity, force, quality, drive) |
| initiative(noun, creativity, drive, push, energy) |
| pluckiness(noun, quality, spirit, dash, informal) |
| steadfastness(noun, drive, energy, spirit, resolve) |
| strength(noun, character, energy, ability, vigor) |
| touchwood |
| valiancy(noun, quality, power, character, strength) |
| verve(noun, force, quality, drive, character) |