①There are one cybeword, which means a kind of people who are different from normal one. It is 火星人 like 异类(Mutant)
eg:没有人能理解这个“火星人”的想法,他总是与众不同。
②If he\she is very outstanding and none (except his own) can find the talent, we may use 孤芳自赏(indulge in self-admiration) Meanwhile, "孤芳自赏" it also means the person who is a bit stuck up like 自命不凡/自恃清高
(孤芳自赏出自宋张孝祥的《念奴娇·过洞庭》,原词为:"应念岭表经年,孤光自照,肝胆皆冰雪。")
eg: 奈何郁郁不得志,终是好马难寻伯乐,他只能孤芳自赏。