Dictionary.com
Thesaurus.com
Synonyms

immune

American  
[ih-myoon] / ɪˈmyun /

adjective

  1. protected from a disease or the like, as by inoculation or by having the necessary antibodies due to a previous infection (often followed byto ).

    Most adults in the study were immune to yellow fever due to previous vaccination.

    Since I had already had measles, I assumed I was immune.

  2. of or relating to the production of antibodies or lymphocytes that can react with a specific antigen.

    Crohn's disease is an abnormal immune reaction that causes the immune system to attack cells in the lining of the digestive tract.

  3. exempt or protected.

    He thought being rich made him immune from punishment, but he went to jail for his crimes.

  4. not responsive or susceptible.

    Over time writers are supposed to grow immune to criticism and let bad reviews roll off our backs.

    You're certainly highly resistant to argument, and also immune to new ideas.


noun

  1. a person who is immune.

immune British  
/ ɪˈmjuːn /

adjective

  1. protected against a specific disease by inoculation or as the result of innate or acquired resistance

  2. relating to or conferring immunity See antibody

    an immune body

  3. unsusceptible (to) or secure (against)

    immune to inflation

  4. exempt from obligation, penalty, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. an immune person or animal

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of immune

First recorded in 1400–50; late Middle English, from Latin immūnis “exempt,” from im- im- 2 + -mūnis ( see common)

Explanation

To be immune to something is to be resistant to it. If you had chickenpox as a child, you should be immune to it now. The adjective immune comes from the Latin word immunis, which means “exempt from public service.” If you're protected — or exempt — from disease, injury, work, insults, or accusations, then you're immune. Vaccinations serve to make people immune to certain diseases. Being a diplomat makes people immune to certain legal persecution. To be immune to bullying means that you don’t let the bad behavior of your peers get you down.

Keep Reading on Vocabulary.com

Vocabulary lists containing immune

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The vaccine does not cause an infection or Ebola symptoms, but trains the immune system to give protection.

From BBC • May 22, 2026

The review warns that broad removal of senescent cells could potentially interfere with tissue repair, immune surveillance, blood vessel stability, and structural integrity in sensitive organs such as the heart, lungs, and brain.

From Science Daily • May 22, 2026

She nailed the role of Carol, a curmudgeon who’s immune to an alien virus that’s made everyone else on Earth annoyingly happy.”

From Los Angeles Times • May 21, 2026

While overall spending on pets remains resilient, Chewy isn’t immune to macro challenges.

From Barron's • May 19, 2026

But once a science establishes itself it becomes, to a remarkable degree, autonomous, immune to influence from other fields.

From "The Invention of Science" by David Wootton

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "immune" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com