nonparticipant

Definitions

A person who does not take part in an activity, event, or organization.

Someone who is present at an event but does not actively engage or contribute.

Examples

The nonparticipant observed the group discussion from the back of the room without offering any input.

As a nonparticipant in the study, he was not required to follow the strict dietary guidelines.

Synonyms

bystander onlooker observer outsider spectator non-actor passive witness

Antonyms

participant contributor active member player collaborator involved party doer