What are antonyms of the word cahoots?

The word "cahoots" implies a secret or illicit collaboration. Therefore, antonyms would describe situations where there is no collaboration, or where the collaboration is open and honest.

Here are some antonyms for "cahoots":

Absence of collaboration:

* Alone

* Independent

* Solitary

* Unconnected

* Disassociated

* Separate

Open and honest collaboration:

* Transparency

* Openness

* Honesty

* Fairness

* Legitimacy

* Cooperation (if it's open and aboveboard)

The best antonym will depend on the specific context in which you are using the word.