Pure-hearted; innocent and ingenuous. Describes a person or attitude that is unpretentious and unaffected.
彼女は子供のように純真で、人を疑うことを知らない。
She is as pure-hearted as a child and doesn't know how to distrust people.
純真な心は時として利用されやすいので注意が必要だ。
A pure heart can sometimes be easily taken advantage of, so caution is necessary.
面接では彼の純真さより実務経験が重視された。
In the interview, his practical experience was valued more than his innocence.