Synonyms of the word 
INEXTERMINABLE → INERADICABLE - INEXTIRPABLE
inexterminable
- adj. Impossible to exterminate.
ineradicable
- adj. not able to be eradicated; of root, too deep to remove.
inextirpable
- adj. Not capable of being extirpated or rooted out; ineradicable.
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