What does "nonuser" mean?

A person who is not a user (of drugs, a computer system, etc.).

Nonuser

Common synonyms include: abstainers, non-user, nonconsumer, nonparticipant, nonusers, straightedge.

noun

noun ·Rare ·Advanced level

Noun

1
A person who is not a user (of drugs, a computer system, etc.).
2
Neglect or omission to use an easement or franchise or to assert a right.
"An office may be forfeited by mis-user or non-user."

"An office may be forfeited by mis-user or non-user."

From non- + user.