33 entries under operative topic. ×

1
instigator(noun, radical)
1
intelligencer(noun, plant, agent, mole)
1
investigator(noun, plant, agent, mole)
1
lookout(noun, plant, agent, mole)
1
noncooperator(noun, radical)
1
observer(noun, plant, agent, mole)
1
patrol(noun, plant, agent, mole)
1
picket(noun, plant, agent, mole)
1
secret service(noun, expression, plant, agent)
1
sleeper(noun, plant, agent, mole)
1
sleuth(noun, plant, agent, mole)
1
snoop(noun, plant, agent, spy)
1
watcher(noun, plant, agent, mole)
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APASmart Define. (2015). secret agent thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/secret_agent/thesaurus/synonyms
ChicagoSmart Define. 2015. "secret agent thesaurus" https://smartdefine.org/secret_agent/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, secret agent thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/secret_agent/thesaurus/synonyms>.
MLASmart Define. "secret agent thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/secret_agent/thesaurus/synonyms>