- Briskness
- Cheerful readiness
- Eagerness
- Keenness
- Liveliness or briskness
- Readiness, briskness
- Speed provides a strange clarity
- Eagerness
- Fitness
- Fruitfulness
- Keenness
- Prior knowledge
- willingness
- Zeal
- Keenness
- Sharpness
- Sharpness or acuteness, as of a needle, wit, etc.
- Ardour
- Keenness
- The state or quality of being eager; ardent desire.
- Tartness; sourness.
- Ebullience
- Energy
- Energy enthusiasm
- Get-up-and-go
- Keenness
- Pep
- Vigour