Synonyms of the word

insusceptible

• adj. Not susceptible.

immune

• adj. (usually with "from") Exempt; not subject to.
• adj. (medicine, usually with "to") Protected by inoculation, or due to innate resistance to pathogens.
• adj. (by extension) Not vulnerable.
• adj. (medicine) Of or pertaining to the immune system.
• n. (epidemiology) A person who is not susceptible to infection by a particular disease.
• v. (rare, transitive) To make immune.

immunised

• v. simple past tense and past participle of immunise.

immunized

• v. simple past tense and past participle of immunize.

immunogenic

• adj. that produces a reaction from the immune system; antigenic.

incapable

• adj. Not capable (of doing something); unable.
• adj. Not in a state to receive; not receptive; not susceptible; not able to admit.
• n. (dated) One who is morally or mentally weak or inefficient; an imbecile; a simpleton.

insensitive

• adj. Not expressing normal physical feeling.
• adj. Not expressing normal emotional feelings; cold; tactless; undiplomatic.

resistant

• n. A person who resists; especially a member of a resistance movement.
• n. A thing which resists.
• adj. Which makes resistance or offers opposition.
• adj. Which is not affected or overcome by a disease, drug, chemical or atmospheric agent, extreme of temperature,…
• adj. (statistics) Not greatly influenced by individual members of a sample.

unpersuadable

• adj. Not persuadable; who cannot be persuaded or convinced.
• adj. Of which one cannot be persuaded.

unresponsive

• adj. Not responsive; unreactive.
• adj. Indifferent or apathetic; emotionless.

unsusceptible

• adj. Not susceptible.

vaccinated

• v. simple past tense and past participle of vaccinate.