1) Against 2) Averse 3) Defiant 4) Impermeable 5) Imperviable 6) Impervious 7) Insusceptible 8) Nonabsorbent 9) Nonabsorptive 10) Noncompliant 11) Unbreakable 12) Unsusceptible 1) French word used in English 2) Immune 3) Impervious 4) Impervious to being affected 5) Insusceptible 6) Possessing resitance 7) Protected 8) Providing opposition 9) Rainproof 10) Solid 11) Standing firm against 12) Unsusceptible 13) Water-resistant 14) Waterproof 15) Watertight 
Possessing resitance. 
• (a.) Making resistance; resisting. • (n.) One who, or that which, resists.
making or having powers of resistance; resisting.
Making or having powers of resistance, resisting. ... (18 Nov 1997) ... 
Re·sist'ant (- a nt) adjective [ French résistant : confer Latin resistens . See Resist .] Making resistance; resisting. -- noun One who, or that which, resists. Bp. Pearson. 
[adj] - incapable of being affected
to protect
Not responsive to treatment. If a cancer becomes resistant to chemotherapy, then the treatment will no longer shrink it.
adjective impervious to being affected; `resistant to the effects of heat`; `resistant to persuasion`
Refers to how well a plant resists to pests.
Refers to how well a plant resists to pests.