A feeling of repugnance toward something with a desire to avoid or turn from it. (Merriam – Webster)
A settled dislike: Antipathy. (Merriam – Webster)
A tendency to extinguish a behaviour or to avoid a thing or situation and especially a usually pleasurable one because it has been associated with a noxious stimulus. (Merriam – Webster)
(a person or thing that causes) a feeling of strong dislike or of not wishing to do something. (Cambridge Dictionary)
If you have an aversion to someone or something, you dislike them very much. (Collins Dictionary)
A strong dislike or disinclination. (Oxford Dictionaries)
Someone or something that arouses a strong dislike or disinclination. (Oxford Dictionaries)
A man feels deep aversion.
The difference between food aversion and anorexia.