Synonyms of the word 
NOSTALGIC → HOMESICK - UNHAPPY
nostalgic
- adj. Of, having, or relating to nostalgia.
- adj. Reminiscent of the speaker's childhood or younger years.
- n. A person who displays nostalgia for something.
homesick
- adj. missing one's home and family very much when away; nostalgic.
unhappy
- adj. Not happy; sad.
- adj. Not satisfied; unsatisfied.
- adj. (chiefly dated) Not lucky; unlucky.
- adj. (chiefly dated) Not suitable; unsuitable.
- n. An individual who is not happy.
If you are interested in words, visit the following sites :
- wiktionary.org/nostalgic For complete definition of a word
- 1word.ws/nostalgic to play with words, suffixs, prefixs, etc.