resistant Synonyms

immune repellent steadfast obstinate durable stubborn firm insusceptible tolerant tough unyielding insubordinate impervious defiant reluctant recalcitrant averse resisting resistive resilient subterrestrial tight watertight toughened unaffected resister substantial solid retardative springy shielded stable shellproof robust rigid steadfastly stiff stout strong unconquerable unpenetrable unwilling rainproof resistivity rocklike shatterproof unbendable uneager uninjectable unobliging