raspoloženje

1. mood
   Danas sam u odličnom raspoloženju. — I'm in a great mood today.
   Nemoj mu kvariti raspoloženje. — Don't spoil his mood.
2. (of a group) atmosphere; spirit
   Raspoloženje na žurci je bilo sjajno. — The atmosphere at the party was great.
3. (of the public) sentiment; attitude
   Ankete pokazuju raspoloženje birača pred izbore. — The polls show voter sentiment ahead of the elections.

A good or bad mood is usually expressed as "u dobrom/lošem raspoloženju" or "dobro/loše raspoloženje".