Unactive vs Deactivate - What's the difference?

As an adjective unactive

is not active; inactive.

(ergative) to make something inactive or no longer effective.

(en adjective)

Not active; inactive.

* Milton

While other animals unactive range.

* de-activate *

(deactivat)

(ergative) to make something inactive or no longer effective

to prevent the action of a biochemical agent (such as an enzyme)

to remove a person or piece of hardware from active military service