na-adjective, noun which may take the genitive case particle 'no', noun
Describes a person or thing as being young or having youthful qualities. Often used in literary or slightly formal contexts.
年若い二人が公園で楽しそうに話していた。
The two young people were chatting happily in the park.
彼は年若くして会社を立ち上げた。
He started a company at a young age.