▪ a person or thing badly affected by an event or situation: "the building industry has been one of the casualties of the recession"Similarvictimsuffererloserloss
▪ (chiefly in insurance) an accident, mishap, or disaster:"the Insurers acquire all the Policyholder's rights in respect of the casualty which caused the loss"
Word Originlate Middle English (in the sense ‘chance, a chance occurrence’): from medieval Latin casualitas, from casualis (see casual), on the pattern of words such as penalty.