Impassive – Not feeling or showing any emotion

To remember the definition of the word impassive, use the following mnemonic:

The imp passed under a sieve (impassive) of water but he felt no emotion. He just carried on walking showing no feelings.

Examples of impassive in a sentence

Is there anything at all behind that impassive face?

He kept his own features impassive, but Vara's words pierced him to the core.

He tried to hide his natural sensibility under an impassive exterior, and concealed his political ambitions.