信心百倍 xìnxīnbǎibèi supremely confident Origin Definitions Defs Strokes Stroke Words Sentences Sents 1 sentence 听到好消息,他信心百倍。 tīngdào hǎo xiāoxi, tā xìnxīn bǎibèi. Hearing the good news, his confidence increased a hundredfold. Source: Dong Chinese Dictionary