D (堅貞不屈) 坚贞不屈 jian1zhen1 bu4 qu1
remain faithful and unyielding/ stand firm and unbending
fest und unbeirrt
堅 坚 hard, strong, firm / resolute
貞 贞 virtuous, chaste, pure / loyal
不 不 no, not / un- / negative prefix
屈 屈 bend, flex / bent, crooked / crouch