noun, noun or participle which takes 'suru', intransitive verb
endurance; stoicism; patient suffering
Refers to bearing hardship or pain with fortitude, often with a nuance of quiet, uncomplaining perseverance. Can be used as a noun or as a する-verb (intransitive).
彼は長い闘病生活を忍苦してきた。
He has endured a long illness with stoicism.
After patient endurance, he achieved success.