Dumb and Weak-kneed

Dumb adjective - Deliberately refraining from speech.

Weak-kneed and dumb are semantically related In some cases you can use "Weak-kneed" instead an adjective "Dumb".

Nearby Words: dumbness, dumbly, dumbed, dumbing

Weak-kneed adjective - Lacking strength of will or character.

Dumb and weak-kneed are semantically related in dizzy topic. Sometimes you can use "Dumb" instead an adjective phrase "Weak-kneed", if it concerns topics such as light-headed.