Ineradicable (adjective)

Impossible to remove or eradicate.

Origin:

From latin in- (not) + eradicabilis (able to be pulled up by the roots), from eradicare (to pull up by the roots).

Examples:

1. Ineradicable stains on the shirt.
2. Her hatred of him was ineradicable.
3. The disease has proved ineradicable.
4. The ineradicable habit of biting his nails.
5. The ineradicable mark left by the burn on his arm.