Low-key and Thick-skinned

Low-key adjective - Not excessively showy.

Thick-skinned and low-key are semantically related. In some cases you can use "Thick-skinned" instead an adjective phrase "Low-key".

Thick-skinned adjective - Having or showing a lack of sympathy or tender feelings.

Low-key and thick-skinned are semantically related. Sometimes you can use "Low-key" instead an adjective phrase "Thick-skinned".