Wafer-thin and Weak-kneed

Wafer-thin adjective - Very thin.

Weak-kneed and wafer-thin are semantically related. In some cases you can use "Weak-kneed" instead an adjective phrase "Wafer-thin".

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

Wafer-thin and weak-kneed are semantically related. Sometimes you can use "Wafer-thin" instead an adjective phrase "Weak-kneed".