reserved


reserved (http://definr.com/reserved)

     adj 1: set aside for the use of a particular person or party [ant:
            unreserved]
     2: marked by self-restraint and reticence; "was habitually
        reserved in speech, withholding her opinion"-Victoria
        Sackville-West [ant: unreserved]
     3: cool and formal in manner [syn: restrained, reticent, unemotional]