Decay
Noun, する verb, and の adjective
ふはい
多くの人々が腐敗した政治組織にうんざりしています。
Many people are tired of the corrupt political ring.
The rot failure is when something rots and fails itself away. It disappears. It is decomposition or decay.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.