A person, or group of people who reject vaccines or do NOT believe in them! Many reasons could be used for their beliefs, but most them stem for religious, fearful, reasons etc.
Lorelai is an anti-vaxxer. She refuses to vaccinate her children!
by loverb0yy April 15, 2021
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Someone who exaggerates or flat-out lies about their child's reaction to vaccines to show how AWAKE they are and to seek sympathy on social media. Also see: narcissistic, pathological liar.
This anti-vaxxer claimed her daughter's cavities were due to the vaccines that Big Pharma gave her. Then I found out she doesn't even HAVE a daughter!
by Sgt Schultz September 3, 2015
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A person opposed to vaccinations, but usually claims to be 'pro-choice'.

An anti-vaxxer can be distinguished by their excessive use of caps lock and memes comparing vaccination to rape, Nazis and/or murder.
I am not an anti-vaxxer, I'm pro-choice.
by John T Smith September 4, 2015
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1. A person who opposes vaccinations despite scientific evidence. Often associated with a fear that they cause autism.

2. Slang for someone who refuses to acknowledge obvious facts because they're contrary to their preconceptions.

alternate spelling of anti-vaxer as originally defined by ReginaAstrum April 09, 2014
Those stupid anti-vaxxers have brought back previously defeated illnesses like measles and mumps all over the country.

Did you hear Jill try to argue that Ken Ham won the debate with Billy Nye? She's such a delusional Anti-vaxxer!
by nEVeRmOre0069 September 2, 2015
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A stupid person (usually a middle aged american woman called Karen) educated by the conspiracy theorists of Facebook.
They believe that vaccines cause Autism, cancer and many other things. They also claim to have scientific evidence, but when asked they'll make up some bullshit or tell you to google it. That's the point when you either A) send them a doctor or B) show them Kurzgesagt's video on how vaccines work.
... And they probably still won't vaccinate.
'I think that woman over there is anti-vaxx'
'I hate anti-vaxxers, fuckin' idiots'
'Yea same here, they're worse than flat earthers'
'I know'
by trollface 5333 June 7, 2019
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A crazy conspiracy theorist that believe vaccines are being used in a quest for world population reduction, even though the rate of growth of world population has increased since vaccines were introduced.
Anti-vaxxers are helping to bring preventable diseases back into the mainstream.
by Morbinator September 4, 2015
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Perhaps the main reason for recent outbreaks of polio and measles in areas in which it had been previously eradicated; tragically misinformed souls, a shocking number of which believe in bleach enemas for innocent autistic children.
"One anti-vaxxer is bad enough, now there's teeming hordes of them, it's a smorgasbord of confirmation bias and polio"
by moarfacts October 10, 2015
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