Active, operative; effectual. rare after 17th cent.

That operates or produces effects; operative, efficacious; †powerful in effect (obsolete).

Characterized by operating or working; being in operation or force; (also) exerting force or influence, or active in producing or having the power…

Active, effective (= Greek ἐνεργής). Obsolete.

That engages in work or action; operative, active, productive; = energetic, adj. 1. Obsolete.

Fully active; roused; operative; existent.

Functioning, operating; capable of operating, functional; spec. (esp. of a machine or machine part) that is set or kept in motion. Also with…

That engages in work or action; operative, active, productive. Obsolete.

In operation, working; effective, functional.

Chiefly Philosophy and Theology. That engages in work or activity; that is in active operation. Now rare.

That engages in work or action; that produces effects; operative, active; = energetic, adj. 1 Obsolete.

That operates.

That functions; working, operating.

Of a machine or mechanism: in operation; working.

Able to fulfil a specific function or perform a designated role; working or operative.