純真無垢 (じゅんしんむく) Japanese meaning | KotomoraMeanings
1
noun, na-adjective
pure; innocent; untainted
yojijukugo (four-character idiom)
Describes a person or thing that is completely pure, innocent, and free from any corruption or impurity. Often used in literary or formal contexts.
The innocence of children tends to be lost as they grow up.