colluder
One who schemes
A colluder is someone who engages in secret cooperation with others for fraudulent or illegal purposes.
The term carries strong negative connotations, implying betrayal of trust or underhanded dealing.
The investigation revealed him as the primary colluder in the price-fixing scheme.
While conspirator suggests plotting, colluder emphasizes the secretive collaboration itself, often in contexts involving corruption, cheating, or market manipulation.
Machinator or diagram machine
- conspiratorOne planning in secret
- schemerCrafty, deceitful planner
- mastermindScheme's chief planner
- intriguerOne who schemes secretly
manipulator · orchestrator · machinator · conniver · fixer · operator · ringleader · instigator
Crime's willing helper
- abettorOne who assists wrongdoing
- enablerOne who facilitates harmful behavior
- co-conspiratorPartner in wrongdoing
- participantOne who takes part
accessory · insider · connivance · tacit · silent · knowing · culpable · implicated
One who shares activity
- confederateAllied partner in schemes
- collaboratorOne who works jointly
- associateConnect mentally or socially
- cohortGroup sharing circumstances
ally · counterpart · syndicate · cabal · cartel · ring · network · faction
One who betrays allegiance
- turncoatOne who betrays allegiance
- double-dealerOne feigning loyalty falsely
- informantOne who provides intelligence
- moleSubterranean insectivore
spy · infiltrator · betrayer · defector · backstabber · Judas · quisling · snake
Inclined to conceal
- covertIntentionally concealed
- clandestineConcealed from authorities
- hiddenKept out of sight
- furtiveSecretive and sly
surreptitious · stealthy · underhand · backdoor · veiled · discreet · undetected · shrouded
plotter
Machinator or diagram machine
- conspiratorOne planning in secret
- schemerCrafty, deceitful planner
- mastermindScheme's chief planner
intriguer · manipulator · orchestrator · machinator · conniver · fixer · operator · ringleader · instigator · architect
accomplice
Crime's willing helper
- abettorOne who assists wrongdoing
- enablerOne who facilitates harmful behavior
- co-conspiratorPartner in wrongdoing
participant · accessory · insider · connivance · tacit · silent · knowing · culpable · implicated · involved
partner
One who shares activity
- confederateAllied partner in schemes
- collaboratorOne who works jointly
- associateConnect mentally or socially
cohort · ally · counterpart · syndicate · cabal · cartel · ring · network · faction · cahoots
traitor
One who betrays allegiance
- turncoatOne who betrays allegiance
- double-dealerOne feigning loyalty falsely
- informantOne who provides intelligence
mole · spy · infiltrator · betrayer · defector · backstabber · Judas · quisling · snake · rat
secretive
Inclined to conceal
- covertIntentionally concealed
- clandestineConcealed from authorities
- hiddenKept out of sight
furtive · surreptitious · stealthy · underhand · backdoor · veiled · discreet · undetected · shrouded · masked
colluderwhistleblower
Insider who reports misconduct
informant · exposer · leaker · truth-teller · revealer
colluderopponent
One who contends against
adversary · investigator · prosecutor · watchdog · resister