Synonyms|305Antonyms|91|Broader|13Narrower|23Related|159
1
mole(noun, plant, agent, operative, informer)
1
monitor
1
naval pilot
1
night watchman
1
non-participant
1
novelist
1
observant
1
observe
1
observers
1
obtainer
1
ogler
1
onlookers
1
operative(noun, plant, agent, mole, infiltrator)
1
overseer(noun, supervisor)
1
patrol(noun, plant, watch, guard, agent)
1
performer
1
plant(noun, agent, operative, informer, mole)
1
playgoer
1
preserver
1
preventer
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APASmart Define. (2016). observer thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/observer/thesaurus/synonyms
ChicagoSmart Define. 2016. "observer thesaurus" https://smartdefine.org/observer/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, observer thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/observer/thesaurus/synonyms>.
MLASmart Define. "observer thesaurus" 26 February 2016. Web. 20 September 2026. <https://smartdefine.org/observer/thesaurus/synonyms>