Here are some other synonyms depending on the specific context:
Stronger emotions:
* Furious
* Enraged
* Irate
* Indignant
* Seething
* Livid
Milder emotions:
* Irritated
* Upset
* Frustrated
* Disgruntled
* Cross
Other related words:
* Hostile
* Resentful
* Bitter
* Vengeful
* Wrathful
* Outraged
Remember to choose the synonym that best fits the specific situation and tone you want to convey.