To indicate direction:
* Counter-current: Flowing in the opposite direction.
* Cross-current: Flowing across the main current.
* Down-current: Flowing in the same direction as the main current.
* Up-current: Flowing against the main current.
To indicate strength or intensity:
* Over-current: A current that is higher than the normal or safe level.
* Under-current: A current that is weaker than the normal or expected level.
To indicate time:
* Pre-current: The period before the current state or situation.
* Post-current: The period after the current state or situation.
Other prefixes:
* Bi-current: Having two currents.
* Multi-current: Having multiple currents.
* Micro-current: A very small current.
* Mega-current: A very large current.
The specific prefix you choose will depend on the context and the meaning you want to convey.