General negativity:
* Scoff: To express scorn or contempt.
* Snicker: To laugh in a disrespectful or mocking way.
* Jeer: To make rude and mocking remarks.
* Scowl: To frown angrily.
* Grimace: To make a face expressing pain or disgust.
More specific negativity:
* Cry: To express sadness or pain.
* Moan: To express pain or sorrow.
* Grieve: To feel or show deep sorrow.
* Wail: To cry out loudly in grief or pain.
* Sob: To cry noisily.
Contextual alternatives:
* Sigh: To exhale deeply, often expressing sadness or resignation.
* Groan: To make a low, deep sound expressing pain, disapproval, or boredom.
* Wince: To flinch or shrink back involuntarily, often in response to pain.
The best synonym will depend on the specific situation and the emotion you want to express.