Uneffective and Weak

Uneffective adjective - Not producing an intended effect.

Weak and uneffective are semantically related. In some cases you can use "Weak" instead an adjective "Uneffective".

Weak adjective - Lacking bodily strength.

Uneffective and weak are semantically related. Sometimes you can use "Uneffective" instead an adjective "Weak".

Nearby Words: weaken, weakness, weakly, weakening, weakling