unquellable
Impossible to quash
Unquellable describes something that cannot be suppressed, extinguished, or brought under control.
The word applies to forces or feelings that persist despite efforts to subdue them: an unquellable thirst for adventure, unquellable optimism.
It carries a sense of irrepressible vitality—the thing keeps rising no matter what pressure bears down on it.
Continuing without pause
- unrelentingRefusing to let up
- tirelessNever losing energy
- untiringNot subject to exhaustion
- inexhaustibleCannot be used up
incessant · unceasing · unremitting · unabating · perpetual · endless · interminable · ceaseless
Firmly committed to purpose
- steadfastFirmly loyal, unshakeable
- unwaveringSteady and unchanging
- unfalteringSteady and persistent
- unswervingFirmly constant in direction
unflinching · unshakable · staunch · stalwart · firm · tenacious · single-minded · strong-willed
Refusing to change position
- uncompromisingRefusing to yield ground
- inflexibleUnable to bend
- rigidUnable to bend
- adamantStubbornly refusing to yield
obdurate · implacable · intransigent · immovable · iron-willed · steely · stubborn · obstinate
Impossible to defeat
- invincibleIncapable of being defeated
- undefeatableImpossible to vanquish
- unbeatableImpossible to overcome
- insurmountableImpossible to overcome
unassailable · indefatigable · dauntless · undaunted · valiant · heroic · fearless · brave
relentless
Continuing without pause
- unrelentingRefusing to let up
- tirelessNever losing energy
- untiringNot subject to exhaustion
inexhaustible · incessant · unceasing · unremitting · unabating · perpetual · endless · interminable · ceaseless · constant
determined
Firmly committed to purpose
- steadfastFirmly loyal, unshakeable
- unwaveringSteady and unchanging
- unfalteringSteady and persistent
unswerving · unflinching · unshakable · staunch · stalwart · firm · tenacious · single-minded · strong-willed · purposeful
unbending
Refusing to change position
- uncompromisingRefusing to yield ground
- inflexibleUnable to bend
- rigidUnable to bend
adamant · obdurate · implacable · intransigent · immovable · iron-willed · steely · stubborn · obstinate · headstrong
unconquerable
Impossible to defeat
- invincibleIncapable of being defeated
- undefeatableImpossible to vanquish
- unbeatableImpossible to overcome
insurmountable · unassailable · indefatigable · dauntless · undaunted · valiant · heroic · fearless · brave · courageous