or an·ti-vax

[ an-tee-vaks, an-tahy- ]
/ ˌæn tiˈvæks, ˌæn taɪ- /

adjective Informal: Disparaging.

of, relating to, or noting people, especially parents of young children, who distrust or are against vaccination: the antivax movement.

Origin of antivax

1990–95; anti- + vax (shortening and alteration of vaccination) Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019