Collusive (adjective)

Involving or characterized by collusion, which is secret cooperation for an illegal or deceitful purpose.

Origin:

The word "collusive" comes from the latin "colludere" meaning "to play together".

Examples:

1. The investigation revealed that the companies had collusive practices to fix prices.
2. He was charged with collusive behavior in the stock market.
3. The court found evidence of collusive behavior between the defendants.
4. The collusive agreement between the two companies was illegal.
5. The employees were fired for collusive activities.