~ 19 words related to reserved as Adjective.

1. reserved
2. booked
3. engaged
4. set-aside
5. bookable
6. rarefied
7. rarified
8. aloof
9. distant
10. upstage
11. diffident
12. indrawn
13. withdrawn
14. backward
15. inhibited
16. restrained
17. undemonstrative
18. reticent
19. unemotional