covert Play adjectiveNot openly acknowledged or displayed.nounA thicket in which game can hide. SYNONYMS backstairsbehind-the-scenesblackclandestinecloak-and-daggerclosetconcealedfurtivehiddenhole-and-cornerhole-in-the-cornerhugger-muggerhush-hushprivatesecretslysneakystealthysurreptitiousunder-the-tableundercoverundergroundunderhand