unannihilative

Example:Many viruses cannot kill off the human immune system entirely, leaving behind an immune response that prevents future infections.

Definition:Resistant to or unaffected by an attack, influence, or condition, especially an attempt to destroy an organism.

Example:The persistent sound of the machine kept him awake throughout the night.

Definition:Continuing to exist or remain for a relatively long time, especially in spite of attempts to get rid of it.

Example:His tenacious approach to problem-solving led him to find innovative solutions where others had failed.

Definition:Having or showing the quality of holding to a belief or purpose despite opposition or difficulties.