Synonyms: ineradicable
Definition: not able to be destroyed or rooted out
Usage: ineradicable superstitions
Similar words: indelible, unerasable
Definition: cannot be removed or erased
Usage: an indelible stain; indelible memories
Similar words: inexpungeable, inexpungible
Definition: not capable of being expunged
Usage: the inexpungible scent of a bottle of perfume he had broken- Louis Auchincloss
Similar words: inexterminable, inextirpable
Definition: incapable of extermination or extirpation
Usage: some weeds seem inextirpable