Douglas Harper's Etymology Dictionary
irradicable
1728, from ir- "not" + radicable.
Wiktionary
irradicable
a. (label en rare) Incapable of being root out or eradicated.
Usage examples of "irradicable".
In like manner, inks composed of by-products of coal tar, can be effectively treated, when irradicable with plain water or soap and water.
In like manner, inks composed of by-products of coal tar, can be effectively treated, when irradicable with plain water or soap and water.