secretive Synonyms

closemouthed furtive tightlipped sly close closelipped tongue-tied thievish taciturn underground underhand surrey surreptitious subreptitious stealthy stealthful soft-spoken sneaky sneaking skulking silent shifty unsociable withdrawn unaired close-lipped not talkative unforthcoming unemphatic top secret undercover hush-hush uncommunicative tight-lipped nongregarious cagy cagey lacrimatory under-the-table zipped back channel clamming up secretory impenetrable holocryptic hidden hermetic evasive esoteric enigmatic