Lack
Deficiency
noun, verbal noun
You lack likeness to anything out there. You totally lack something that gives you likeness. It's a deficiency, or something.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
ビタミンB1が欠如すると、脚気になるかもしれないですよ。
A Vitamin B1 deficiency might cause beriberi.
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.