老當益壯

1. • old but vigorous (idiom) hale and hearty despite the years

Character by character

• 老(lǎo)prefix used before the surname of a person or a numeral indicating the order of birth of the children in a family or to indicate affection or familiarity
• 當(dāng)be
• 益(yì)surname Yi
• 壯(zhuàng)Zhuang ethnic group, the largest ethnic minority in China