Co*ac"tive (?), a. [In sense 1, fr. 1st Coact; in sense 2, fr. 2d Coact.]
1.
Serving to compel or constrain; compulsory; restrictive.
Any coactive power or the civil kind.
Bp. Warburton.
2.
Acting in concurrence; united in action.
With what's unreal thou coactive art.
Shak.
© Webster 1913.