Webster's Revised Unabridged Dictionary · 1913

Reserved

Reserved (-z?rvd") , adjective

1.
Kept for future or special use, or for an exigency; as, reserved troops; a reserved seat in a theater.
2.
Restrained from freedom in words or actions; backward, or cautious, in communicating one's thoughts and feelings; not free or frank.
To all obliging, yet reserved to all. — Walsh
Nothing reserved or sullen was to see. — Dryden