Across
- 5. persistence, endurance, determination
- 6. excitement, energy, eagerness
- 8. adaptability, fortitude, durability
- 10. thrill, elation, jubilation
Down
- 1. courage, valor, fearlessness
- 2. resolve, steadfastness, drive
- 3. thoroughly, carefully, precisely
- 4. achieve, triumph, prosper
- 7. predicament, quandary, catch-22
- 9. vital, essential, crucial