Interesting, Amusing, Funny
い adjective
The face of this object is so white! Why is it so white compared to everything else? This is so interesting...
おもしろい
The reading is unlike what you've learned before, at least with the 面 part (白い is just like the vocab word 白い). When you look at the white face of the object you say to your friend Moe: "Oh mo!" (おも) because you want him to come over and look at this. Try to imagine someone you know named Moe, or at least a celebrity or something named Moe.
それは今まで聞いた中で、一番面白い話でした。
That was the funniest thing I’ve ever heard.
このマンガは、ちょっと下品だけどとても面白いんです。
This manga is a bit crude but it's very interesting.
あいつは面白いやつだけど、ちょっとしたことですぐ切れるのがネックだよな。
He is an amusing guy, his only downside is that he gets angry over the smallest things.