Cantankerous and Low-down

Cantankerous adjective - Having or showing a habitually bad temper.

Low-down and cantankerous are semantically related. In some cases you can use "Low-down" instead an adjective "Cantankerous".

Low-down adjective - Not following or in accordance with standards of honor and decency.

Cantankerous and low-down are semantically related. Sometimes you can use "Cantankerous" instead an adjective phrase "Low-down".