Insufficient and Weak

Insufficient adjective - Not coming up to an expected measure or meeting a particular need.

Weak is a synonym for insufficient in ineffective topic. In some cases you can use "Weak" instead an adjective "Insufficient", when it comes to topics like feeble, deficient.

Nearby Words: insufficiency, insufficiently

Weak adjective - Lacking bodily strength.

Insufficient is a synonym for weak in ineffective topic. Sometimes you can use "Insufficient" instead an adjective "Weak", if it concerns topics such as deficient.

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