- That cannot be quenched.
- After a twelve-mile run in the hot sun, his thirst felt unquenchable.
- 1834, Letitia Elizabeth Landon, Francesca Carrara, volume 1, pages 3-4:
- Alas! thus ever does the weakness of our nature rebuke its strength, and genius is brought to the level—ay, below the level—of common humanity, by an unquenchable thirst for its applause.