High Class
Splendid, Admirable
noun, な adjective
The sect that stands the highest are those who are high class, splendid, and fine. 立派だ!
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. The りつ shortens to りっ though, so keep an eye on that you splendid frood you. Oh and は changes to ぱ too. Because rendaku and all that.
あの会社、うわべだけは立派だよね。
That company is only admirable on the surface.
お前も立派な映画評論家になったもんだなぁ。
You've become such a splendid movie critic.
私の猫は立派な髯を生やしているので、「ヒゲ」と名付けました。
My cat grew very handsome whiskers, so I named him Hige.