How would you describe someone who is "averse"?

Describing someone as "averse" means they have a strong feeling of dislike or opposition towards something. This deep-seated distaste indicates a reluctance or unwillingness to engage with or accept what they are averse to. For example, a person who is averse to public speaking likely feels significant discomfort or negativity at the thought of speaking in front of an audience, leading them to avoid those situations whenever possible.

The other descriptions do not align with the meaning of "averse." To be willing and eager implies a positive inclination, while being friendly and sociable suggests openness and affability. Calm and composed refer to a person's demeanor in stressful situations, which does not relate to feelings of distaste or aversion. Therefore, the choice that best captures the essence of being "averse" is the one indicating a deep-seated distaste.