noun
eccentric person; oddball; crank
Refers to a person with unusual or eccentric behavior, often in a mildly negative or humorous way. Not typically used for serious mental conditions.
彼は奇人として知られている。
He is known as an eccentric person.
あの奇人は毎日同じ服を着ている。
That oddball wears the same clothes every day.
From 奇 (ki, 'strange, unusual') + 人 (jin, 'person'). The kanji 畸 is a rare variant of 奇 with the same meaning.