An adverb used with negation to mean 'never again' or 'by no means' (strong negative).
彼の嘘は許せない。金輪際彼とは会わない。
I can't forgive his lies. I'll never see him again.
金輪際遅刻はしないと心に誓った。
I vowed I would never be late again.
あの店からは金輪際買い物をしないつもりだ。
I intend never to shop at that store again.
A Buddhist term originally meaning the deepest bottom of the world; now mostly used figuratively or in literary contexts.
古い経典には金輪際という語が深い底を表す言葉として出てくる。
In old sutras the term 'konrinzai' appears as a word denoting the deepest depths.