Crisis
noun, の adjective
A dangerous machine is walking through your town, destroying everything. This is a huge crisis!
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
日本は今、国家存亡の危機にあります。
Japan is currently facing a crisis that threatens its national survival.
もうちょっと危機感もった方がいいんじゃない？
Maybe you should have a bit more sense of urgency.
第三次世界大戦は文明の危機につながります。
World War III will lead to a crisis of civilization.