相当な注意 そうとうなちゅうい Meanings Expression due diligence; due care; reasonable diligence; reasonable care See also: 相当 (そうとう). Kanji 相 mutual. Read as ソウ. 当 apply. Read as トウ. 注 pour. Read as チュウ. 意 mind. Read as イ. Jinuma: Japanese Dictionary · Word lists