What is reserved?

adjective

adjective: reserved

1. 1. slow to reveal emotion or opinions.

   "he is a reserved, almost taciturn man"

   synonyms: reticent, quiet, private, uncommunicative, unforthcoming, undemonstrative, unsociable, formal, constrained, cool, aloof, detached, distant, remote, unapproachable, unfriendly, withdrawn, secretive, silent, taciturn; More shy, retiring, diffident, timid, self-effacing, inhibited, introverted; informalbuttoned-up, standoffish

   "Rodney is rather reserved"

   antonyms: outgoing