Repugnant
/rɪˈpʌɡnənt/ adjective easySo distasteful or offensive that it provokes strong dislike or disgust.
Many viewers found the film's casual violence repugnant.
Memory Trick
Repugnant shares its root with 'pugnacious' (ready to fight) -- something repugnant makes you want to fight it off or recoil from it.