Refusal
Rejection
noun, の adjective, verbal noun
I refuse. I am saying "no." That is my refusal.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
彼は戦場に行く事を拒否したため、臆病者と呼ばれた。
He was called coward since he’d refused to go to the battlefield.