深信不疑 Save Sign in to save words shēnxìnbùyí ㄕㄣ ㄒㄧㄣˋ ㄅㄨˋ ㄧˊ to believe firmly without any doubt (idiom) absolute certainty about sth Character by character 深(shēn)deep 信(xìn)letter 不(bù)no 疑(yí)doubt A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0