Double-barreled and Left-handed

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

Left-handed and double-barreled are semantically related. In some cases you can use "Left-handed" instead an adjective phrase "Double-barreled".

Left-handed adjective - Lacking or showing a lack of nimbleness in using one's hands.

Double-barreled and left-handed are semantically related. You can use "Double-barreled" instead an adjective phrase "Left-handed".