Reprehensible

/ˌrɛprɪˈhɛnsəbəl/ adjective medium

Deserving of strong criticism or blame because it is morally wrong.

Leaving the injured driver at the scene was a reprehensible act that shocked the entire town.

Memory Trick

Hidden inside reprehensible is 'reprehend,' a cousin of 'apprehend' (to seize) -- behavior this bad deserves to be seized and condemned.