| tenacious(adjective, strong, firm, determined, steady) |
| uncomplaining |
| unflinching(adjective, strong, firm, energetic, determined) |
| unrelenting |
| alert(adjective, good, clear, pleasant, keen) |
| ardent |
| ball of fire(adjective, tireless) |
| blooming(adjective, good, clear, pleasant, keen) |
| bouncing(adjective, good, clear, pleasant, keen) |
| bright-eyed(adjective, good, clear, pleasant, keen) |
| bushy-tailed(adjective, good, clear, pleasant, keen) |
| businesslike |
| chipper(adjective, good, clear, pleasant, keen) |
| clear(adjective, good, pleasant, keen, bright) |
| continued(adjective, strong, firm, determined, steady) |
| dead set on |
| dedicated(adjective, strong, firm, determined, steady) |
| devoted(adjective, strong, firm, determined, steady) |
| dewy(adjective, good, clear, pleasant, keen) |
| fair(adjective, good, clear, pleasant, keen) |