covert Synonyms - page 2

stealth spinny shrouded unacknowledged unconfessed top secret thievishly safe harbor unseeable unapparent hush-hush hole-and-corner hideout under cover under the counter unsuspected unrevealed unpublished unperceivable unobserved unobservable unexpressed undisclosed under wraps cloak-and-dagger nonvisual under-the-table sub-rosa behind-the-scenes backstage backroom back room back channel ground cover bomb shelter belowground hideaway screenland hiding place funk hole foxhole low-key low profile bolt-hole leaf mold black-market air-raid shelter esoteric copsewood copse