Matter-of- fact and Poker face

Poker face and matter-of- fact are semantically related. In some cases you can use "Poker face" instead an adjective phrase "Matter-of- fact".

Poker face noun - A face without any interpretable expression (as that of a good poker player).

Matter-of- fact and poker face are semantically related. Sometimes you can replace phrase "Matter-of- fact" with "Poker face", this phrases are similar.