Repugnance implies a very strong, instinctive reaction, stronger than simple dislike. The repugnance she felt for the unclean surroundings was overwhelming.
Pro Tip 2/3
Specific Disgust
It often refers to disgust over something specific, concrete or abstract. His repugnance at the thought of eating insects was clear.
Pro Tip 3/3
Personal Feeling
It's a personal feeling, which means that what causes repugnance can vary widely among individuals. Despite its popularity, she had a repugnance for social media platforms.