Noun and の adjective
きちがい
この吹雪の中、パンツ一丁で踊るなんて、気違いにも程がある。
Dancing around in a snow storm in nothing but your underpants is just too crazy.
Your energy is ... well ... different. That's the nice way to put it. You're crazy, actually.
WARNING: We're teaching you this word because it's used quite a bit still (especially online) and we want you to be able to understand it if you see it. But please keep in mind that this is considered to be a discriminatory word against people with mental illnesses, so we strongly recommend you do not use or direct this word toward anyone. Think of it like a really inappropriate swear word that makes you really uncool if you say it. Please!
The reading is 気 plus 違い.