General Opposites:
* Repulsion: This is a strong word suggesting a feeling of disgust or aversion.
* Rejection: This implies a refusal to be seduced or persuaded.
* Resistance: This emphasizes the act of actively fighting against seduction.
Specific to Persuasion:
* Disuasion: This refers to the act of persuading someone *not* to do something.
* Deterring: This means to discourage or prevent someone from doing something.
Specific to Romance:
* Abstinence: This implies a choice to refrain from sexual activity.
* Celibacy: This is a state of refraining from sexual activity, often for religious or moral reasons.
* Chastity: This is the quality of being morally pure, often implying a lack of sexual desire.
The best antonym for seduction will depend on the specific context and the nuance you want to convey.