势同水火 shìtóngshuǐhuǒ like water and fire Origin Definitions Defs Strokes Stroke Words Sentences Sents 势 勢 shì noun situation (bound form) situation; circumstances; trend; tendency同 tóng adjective same same; alike; similar; equal; to be the same as水火 shuǐhuǒ noun extremes metaphorical for things that are completely opposite or incompatible like water and fire