na-adjective, taru-adjective, adverb taking the 'to' particle
Describes a person or attitude that is pure-hearted, unsullied, or inexperienced in worldly matters. Often carries a nuance of simplicity or lack of guile.
彼女は純な心の持ち主だ。
She has an innocent heart.
その少年の純な笑顔に心が和んだ。
My heart was warmed by the boy's innocent smile.
prefix
Prefix used to indicate something is pure, undiluted, or genuine, as in 純金 (pure gold) or 純文学 (pure literature).
この指輪は純金でできている。
This ring is made of pure gold.
純粋な気持ちでボランティアに参加した。
I joined the volunteer activity with pure intentions.