noun
Formal or literary term for people other than oneself or a specified person. Often used in contrastive or exclusive contexts.
余人には理解できない境地だ。
It is a state of mind that others cannot understand.
この仕事は余人をもって代えがたい。
This work cannot be done by anyone else.
Compound of 余 (yo, 'remaining, other') and 人 (jin, 'person'). The reading よにん is a rare alternative that is not commonly used.