深信不疑 (shēn xìn bù yí) — to believe firmly without any doubt; to be completely convinced

Definition

An idiom meaning 'to believe firmly without a shadow of doubt' — stronger than simply 相信, emphasizing total, unwavering conviction.

idiom
to believe firmly without any doubtto be completely convinced

Examples

  • 深信不疑
    Tīng le tā de jiě shì, wǒ duì tā de néng lì shēn xìn bù yí.
    After hearing his explanation, I firmly believed in his ability.
  • 深信不疑
    Tā yì zhí duì kē xué de jìn bù shēn xìn bù yí.
    She has always had unwavering faith in the progress of science.
  • 深信不疑
    Wǒ men duì zhè ge jì huà de chéng gōng shēn xìn bù yí.
    We are completely convinced of the success of this plan.

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