buttoned-up Synonyms

accomplish withdrawn wind up asocial unapproachable standoffish uncommunicative unresponsive top secret unclubbable hard to approach close-lipped avoiding contact clean-living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