resistant

A person who resists; especially a member of a resistance movement.

A thing which resists.

Which makes resistance or offers opposition.

Which is not affected or overcome by a disease, drug, chemical or atmospheric agent, extreme of temperature, etc.

The infection is resistant to antibiotics.

[…] suggests the dauerlarva is resistant because of non-feeding and a more resistant cuticle. Examination of the dauerlarva cuticle by thin sectioning and electron micro[…]

Not greatly influenced by individual members of a sample.