Quiet
noun, な adjective
Leisurely quiet is the best kind of quiet. Even your brain gets to be quiet because you don't have a care left in the world.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
この辺りは、閑静な住宅街になっています。
This neighborhood is now a quiet residential area.
An update is needed before you can continue but you have more than one WaniKani tab open.
Finish up what ever you are doing on the other tab(s), then close them to continue.
The update will complete automatically once the other tab(s) are closed.