If "cue" means a signal or hint:
* Obscure: To make something unclear or hidden.
* Misdirect: To lead someone astray or give them false information.
* Suppress: To prevent something from being expressed or revealed.
* Conceal: To hide something.
If "cue" means a prompt for action:
* Pause: To stop or delay action.
* Discontinue: To stop doing something.
* Delay: To postpone something.
* Ignore: To refuse to notice or pay attention to something.
If "cue" means a stick used in billiards:
* None (There's no direct opposite for this meaning.)
To find the best antonym, you need to consider the specific context in which "cue" is being used.