Used as a noun meaning a young person. Often appears in the set phrase 老いも若きも (both old and young).
See also: 老いも若きも
Both old and young enjoyed the festival.
noun-modifying (irregular)
Prenominal (attributive) form of the classical adjective 若し. Used before nouns to mean 'young'. In modern Japanese, 若い is the standard adjective.
He talked about memories of his younger days.
both young and old; everyone regardless of age
young leader
Attributive form of the classical adjective 若し (わかし), meaning 'young'. In modern Japanese, it survives in literary contexts and fixed expressions.