also: ピュアー
Loanword from English 'pure'. Used for people, feelings, substances, and abstract concepts. Often carries a nuance of innocence or lack of corruption.
I was moved by her pure heart.
She always keeps a pure heart.
This water is very pure and delicious.
He's such a pure-hearted person that he doesn't suspect anyone.
I don't want to forget the pure feelings I had as a child.
不純 means impure or tainted (with ulterior motives or mixed substances), the direct opposite of ピュア's sense of innocence and unadulterated quality.
Standard katakana spelling for this loanword.
Variant spelling with long vowel; less common.
Loanword from English 'pure'.