笃信 Traditional 篤信 dǔ xìn 🔊 to sincerely believe + Keep this word Meanings dǔ xìn 篤信 to sincerely believe Its characters 笃dǔsincere; genuine信xìnletterHSK 3 Words with 笃信 笃信好学 dǔ xìn hào xué sincere belief and diligent study