Catlike and Hush-hush

Hush-hush and catlike are semantically related. In some cases you can use "Hush-hush" instead an adjective "Catlike".

Hush-hush adjective - Not known or meant to be known by the general populace.

Catlike and hush-hush are semantically related. Sometimes you can use "Catlike" instead an adjective phrase "Hush-hush".