Vocabulary
어리다
be young
Meaning
Adjective 어리다: to be young in age.
Why this form?
젊다 — be young: especially of young adults; 어리다 points to a lower age.
Forms not to confuse
젊다
그분은 아직 젊어요. — That person is still young.
Examples
그보다 조금 더 어려 보인다. — He looks a little younger than him.
동생은 저보다 어려요. — My younger sibling is younger than me.