Catastrophe
The pillow fight was disaster!
One option is the word disaster.
Your room is a disaster! Go clean it!
There was a big disaster after the tornado in town.
No, the word 'serious' is an adjective, a word that describes a noun (a serious student, a serious injury).The noun form of the adjective 'serious' is seriousness.
A ready kit is a kit for serious emergences. Such as natural disaster.
The word 'disaster' is a noun, a word for a sudden event that causes great damage or loss of life; an event that has unfortunate consequences. The noun 'disaster' is a singular, common, abstract noun; a word for a concept; a word for a thing.
It has sometimes been suggested that eucatastrophe be used as the opposite of catastrophe or disaster, but the word has never really caught on. The best we can do, to indicate the opposite of a disaster, is to describe an event as extremely fortunate. In some contexts the word breakthrough will convey that meaning.
There was a tragic Disaster on September 11, 2001.
disaster that starts with cri.
The adjective form for the noun disaster is disastrous.
This disaster did not break the city's spirit. The combined dog show and cat show was a disaster.