最さい年ねん長ちょう

noun which may take the genitive case particle 'no'

eldest; oldest

Used to describe the person with the highest age in a group. Often used as a no-adjective before nouns like 者 (person) or メンバー (member).

• 彼かれはチームの最さい年ねん長ちょうメンバーです。