na-adjective, noun
pure and good; unmixed and high-quality
Used for things: materials, ingredients, products, etc., that are pure, unadulterated, and of high quality.
この蜂蜜は純良で、添加物は一切入っていません。
This honey is pure and good, with no additives at all.
純良なオリーブオイルは香りが違う。
Pure, high-quality olive oil has a different aroma.
na-adjective, noun
good-natured; genuine; wholesome
Used for people: describes someone with a sincere, good-natured, and wholesome character.
彼は純良な人柄で、誰からも信頼されている。
He has a good-natured personality and is trusted by everyone.
純良な若者に育ってほしい。
I want him to grow up to be a wholesome young person.