人祸天灾 rénhuòtiānzāi disasters Origin Definitions Defs Strokes Stroke Words Sentences Sents 人祸 人禍 rénhuò man-made disaster a calamity or disaster caused by human actions, as opposed to natural causes天灾 天災 tiānzāi natural disaster natural disaster; includes phenomena like floods, droughts, earthquakes, and insect pests