Unquenchable/ʌnˈkwentʃəbl/ Definition 1 of 1Pro Tip 1/3Emotional Intensity Used to express a deep, often emotional need that can't be easily ignored or denied. Her unquenchable passion for social justice drove her to rally. Pro Tip 2/3Not Literal Often figurative, describing strong desires rather than actual physical thirst. His unquenchable curiosity made him an excellent detective. Pro Tip 3/3Hyperbolic Can be an exaggeration to emphasize the intensity of a need or desire. She spoke of her unquenchable longing for adventure.