Adjective used to describe those who have not or will not receive the recommended booster shot during the COVID inoculation campaign.
Also a noun.
“The unboostered should not be allowed into gyms to work out alongside the fully boostered.”
“Being an unboostered, I wasn’t allowed into the grocery store to buy food.”
Those who’ve had the regular series of 2 doses of mRNA COVID shots, but have not gotten a booster.
Even those who get a booster become unboostered after six months.