kept or set apart for some particular use or purpose.

kept by special arrangement for some person

a reserved seat.

formal or self-restrained in manner and relationship; avoiding familiarity or intimacy with others

a quiet, reserved man.

characterized by reserve, as the disposition, manner, etc.

reserved comments.

retaining the original color of a surface, esp. when decorating portions of the surface with other colors.

adjective

extroverted , friendly , outgoing , sociable , given , offered , unreserved

adjective

aloof , backward , bashful , cautious , ceremonious , close , close-mouthed , cold * , collected , composed , conventional , cool , demure , diffident , distant , eremitic , formal , frigid , gentle , icy * , mild , misanthropic , modest , noncommittal , offish , peaceful , placid , prim , quiet , reclusive , restrained , reticent , retiring , secretive , sedate , self-contained , serene , shy , soft-spoken , solitary , standoffish , taciturn , unapproachable , uncommunicative , uncompanionable , undemonstrative , unresponsive , withdrawn , appropriated , arrogated , booked , claimed , engaged , kept , laid away , limited , preempted , private , qualified , restricted , retained , roped off , set apart , set aside , spoken for , taken , modified , controlled , inhibited , self-controlled , self-restrained , chill , chilly , remote , incommunicable , incommunicative , silent , tightlipped , uncommunicable , apathetic , cold , constrained , detached , egocentric , excepted , indrawn , phlegmatic , retarded , retentive , saved , unsociable , withheld