Synonyms of the word 
UNAMUSED → JOYLESS - MIRTHLESS
unamused
- adj. Not amused; thus often offended or put off.
joyless
- adj. without joy; unhappy, sad.
mirthless
- adj. Lacking mirth; devoid of joy.
If you are interested in words, visit the following sites :
- wiktionary.org/unamused For complete definition of a word
- 1word.ws/unamused to play with words, suffixs, prefixs, etc.