An Eccentric
Eccentric, Oddball
noun
A strange person is an eccentric. They are also an oddball.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
この町には変人が多いらしい。
I hear there are a lot of weirdos in this town.
変人だと思われがちだけど、彼は天才だ。
People think he's a freak, but he's a genius.
あのアーティストは変人で有名だが、彼女のアートは本当にすごい。
That artist is famous for being an eccentric, but her art is truly amazing.