Unskillful
Childish
noun, な adjective
ちせつ
下手 (へた) Unskillful, Unskilled, Bad At
不器用 (ぶきよう、ぶきっちょ) Clumsy, Unskillful, Awkward
稚拙 (ちせつ) Unskillful, Childish
幼い (おさない) Very Young, Childish
幼稚 (ようち) Childish, Immature
He's Unskillful at organizing cheese ち into sets せつ