How to pronounce“unseriousness”in English

So, it's, it's, you know, in addition to like, you know, exercise or staying fit or whatever, it's also an, sports also provide me, personally, an opportunity to sort of laugh at myself.I feel like that unseriousness is lacking in, in the gym world. It's sort of like, inthe, in the minds of the gym owners of America, all Americans are like, thoroughbred horses.