What is an antonym for trance?

There isn't one single perfect antonym for "trance" because it can have different meanings depending on the context. Here are some possibilities:

For "trance" as a state of altered consciousness:

* Awake

* Conscious

* Alert

* Vigilant

* Rational

For "trance" as a state of deep absorption:

* Distracted

* Inattentive

* Unfocused

* Disengaged

For "trance" as a state of hypnotic control:

* Free

* Independent

* Autonomous

Ultimately, the best antonym depends on the specific meaning of "trance" in the context you are considering.