势如水火 shìrúshuǐhuǒ mutually incompatible Origin Definitions Defs Strokes Stroke Words Sentences Sents 势 勢 shì noun situation (bound form) situation; circumstances; trend; tendency如 rú preposition to be like to be like; to be similar to; as if水 shuǐ noun water water; a liquid, juice, or lotion火 huǒ noun fire fire; light and heat produced by burning; flames