Repugnance (noun)

1. A strong feeling of disgust, distaste or aversion.
2. Strong opposition or resistance to something.

Origin:

From the latin word repugnantia, meaning "resistance, opposition", which is derived from the verb repugnare, meaning "to fight against".

Examples:

1. He felt a repugnance towards the idea of eating insects.
2. The repugnance to the new policy was clear in the employees' reactions.
3. She had a repugnance to the smell of cigarettes.
4. The repugnance to his proposal was clearly visible on her face.
5. He had a repugnance to violence and refused to watch violent movies.