Double-edged and Quick on the uptake

Double-edged adjective - Consisting of two members or parts that are usually joined.

Quick on the uptake and double-edged are semantically related. In some cases you can use "Quick on the uptake" instead an adjective phrase "Double-edged".

Double-edged and quick on the uptake are semantically related. Sometimes you can use "Double-edged" instead an adjective phrase "Quick on the uptake".