buttoned-up Synonyms

accomplish unresponsive uncommunicative standoffish unapproachable asocial wind up withdrawn unsociable top secret unclubbable with a lid on kept concealed hidden away clutching prude clean-living prude avoiding contact close-lipped hard to approach unfriendly terminate complete clubbish classified button babbitt austere antisocial aloof cool detached taciturn reticent reserved remote quiet prim finish distant kept secret