noun
child not enrolled in kindergarten or nursery school
Colloquial term used in parenting and education contexts to refer to a preschool-aged child who does not attend any formal early childhood program. Often contrasted with 未就園児 (みしゅうえんじ), which has a similar meaning but may be more formal.
See also: 未就園児
うちの子はまだ無園児なので、来年から幼稚園に入れる予定です。
Our child is still not enrolled in any preschool, so we plan to send them to kindergarten next year.
無園児向けの遊び場が近所にあります。
There is a play area for children not attending preschool in the neighborhood.
Refers to a child who is enrolled in a kindergarten or nursery school. 無園児 is the opposite.
Compound of 無 (む, 'without') + 園児 (えんじ, 'kindergarten/nursery child'). The term appears to be a modern coinage reflecting the concept of children not attending early childhood education.