* Emotional: This is a general antonym, emphasizing the opposite of being unemotional and impassive.
* Sensitive: This suggests a heightened awareness and responsiveness to emotions.
* Expressive: This indicates someone who openly displays their emotions.
* Dramatic: This implies someone who overreacts or exaggerates their emotional response.
* Passionate: This describes someone with intense feelings and emotions.
* Melodramatic: This implies someone who expresses their emotions in an overly dramatic way.
* Voluble: This suggests someone who is talkative and readily expresses their feelings.
* Effusive: This describes someone who expresses their emotions openly and enthusiastically.
The best antonym will depend on the specific context and the way "stoic" is being used.