致命性 zhìmìngxìng lethality Definitions Defs Origin Strokes Stroke Words Sentences Sents 致命 zhìmìng adjective fatal; to cause death causing death; fatal; mortal; deadly性 xìng affix [-ity] Suffix used after verbs or adjectives to form nouns expressing a state, quality, or scope, similar to English "-ity", "-ness", or "-ism".