Definition of unparticipant in English:

unparticipant

adjective

rare
  • Not participant; that does not participate or take part. Hence: detached, uninvolved.

Origin

Early 19th century; earliest use found in Star. From un- + participant.

Pronunciation

unparticipant

/(ˌ)ʌnpɑːˈtɪsɪp(ə)nt/