Gentleness
な adjective, noun
Gentle and peace. These are signs of gentleness.
You didn't learn this reading of 柔 with the kanji, so let's remember it a different way. You have to provide a lot of gentleness if you want to touch something that's new (にゅう) to this world... a puppy, a kitty, a baby, etc. Anything new needs gentleness.
あそこで柔和な笑みを浮かべている理髪師は、実はこの辺りのポン引き男どもの親分なんだ。
That gentle looking barber over there is actually this area’s pimp boss.