| persistent(adjective, resolute, tenacious) |
| venturesome(adjective, courageous) |
| heroic(adjective, strong, fear, bold, spirited) |
| adventurous(adjective, strong, smart, bold, spirited) |
| defiant(adjective, strong, bold, spirited, courageous) |
| firm(adjective, strong, determined, bold, resolute) |
| peppery(adjective, keen, sharp, bright, energetic) |
| sexy(informal, australian) |
| snappy(adjective, bright, energetic, lively, determined) |
| stalwart(adjective, strong, informal, valiant) |
| steadfast(adjective, resolute, tenacious) |
| stouthearted(adjective, strong, fear, bold, spirited) |
| strong(adjective, energetic, tenacious) |
| true(adjective, resolute, tenacious) |
| unfearing(adjective, bold, confident, fearless) |
| venturous(noun, adjective) |
| zippy(adjective, bright, energetic, lively, determined) |
| alert(adjective, bright, energetic, determined, bold) |
| animated(adjective, energetic, lively, determined, vigorous) |
| ardent(adjective, bright, energetic, passionate, lively) |