不渝

constant / unchanging / abiding / faithful

no; not so / (bound form) not; un-

short name for Chongqing 重慶|重庆[Chong2 qing4] / old name of Jialing River 嘉陵江[Jia1 ling2 Jiang1] in Sichuan

unswerving in one's loyalty (idiom); faithful and constant

unswerving / unflinching

unyielding integrity (idiom); unwavering

to stick to sth without change (idiom); to persevere