refuser; objector
A person who refuses or objects to something, often used in formal or legal contexts such as military service, vaccination, or official requests.
彼は兵役拒否者として知られている。
He is known as a conscientious objector.
ワクチン接種の拒否者が増えている。
The number of vaccination refusers is increasing.
draft refuser; conscientious objector
draft refuser; draft objector
Compound of 拒否 (refusal) + 者 (person).