40 entries under noun topic. ×

1
gawker(witness, proof, testimony, observer)
1
knockout
1
mantrap
1
non-participant
1
outlier(isolation, person, alien)
1
proof(witness, testimony, observer, watcher)
1
rubberneck
1
rubbernecker(witness, proof, testimony, observer)
1
signatory(witness, proof, testimony, observer)
1
signer(witness, proof, testimony, observer)
1
spectators
1
testifier(witness, proof, testimony, observer)
1
testimony(witness, proof, observer, watcher)
1
voyeur
0
by-stander
0
commentator
0
dish
0
evidence
0
informant
0
outsider
<12>
10 years ago|2.9k views|share |citing 
APASmart Define. (2016). onlooker thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/onlooker/thesaurus/synonyms
ChicagoSmart Define. 2016. "onlooker thesaurus" https://smartdefine.org/onlooker/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, onlooker thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/onlooker/thesaurus/synonyms>.
MLASmart Define. "onlooker thesaurus" 26 February 2016. Web. 30 September 2026. <https://smartdefine.org/onlooker/thesaurus/synonyms>