Chloe Moretz At The WIE Ladies' Night Gala: Hit Or Miss? (PHOTOS)

She's known for her high-fashion gigs (including a LOVE cover and a Vogue spread) as well as her surprisingly mature potty mouth in movies like "Kick-Ass" and even "(500) Days of Summer."

But there's no need for Chloe Moretz to grow up too fast when it comes to style -- at 14, she can wear all the party dresses she wants!

So we were bummed to see that Moretz chose a decidedly grown-up look for last night's WIE Symposium Ladies' Night Gala Dinner held at Le Caprice in New York City.

The 14-year-old star wore a conservative white blouse tucked into a high-waisted purple and black skirt, pairing with librarian-chic ensemble with plain, black T-strap pumps.

Moretz may have been trying to dress up for the mature crowd, which included Arianna Huffington, Iman, Elettra Wiedemann, Anouck Lepere, Rachel Roy and Alina Cho. But couldn't she have chosen something a little less boring?

For some tips she could call her peers, Elle Fanning and Hailee Steinfeld, who have the fashionable-but-still-teenage look down to a science.

Take a look at Chloe's outfit below and tell us what you think.