If it is a pet cat or a kitten, it cannot defeat a weasel. Pet cats have no shortage of food and are very well protected by humans. They will only feel nervous and scared when facing a weasel and will not attack. But if it is an adult wild cat If you fight against a weasel, you can win. Wild cats have lived in the suburbs for a long time, are flexible and good at hunting, and can easily subdue a weasel.