老當益壯 [－当－壮]

Jyutping lou5 dong1 jik1 zong3
Pinyin lǎo dāng yì zhuàng

Definitions (CC-CEDICT)
  1. old but vigorous (idiom); hale and hearty despite the years
Definitions (粵典–words.hk)
  1. 形容詞
    年紀​大​不​過志氣​更加​豪壯
    old but vigorous
Definitions (Wiktionary)
  1. phrase, idiomatic
    to have one's ambition or resolve growing stronger even though he or she is old
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）