If something's unconcealed, it's not hidden or made secret. Your unconcealed affection for your dog is evident to everyone — you talk about her adorable antics nonstop, hang pictures of her in your locker, and throw her a lavish birthday party every year.
When things are concealed, they're covered up or guarded, like a spy's concealed identity or a birthmark that's concealed with makeup. Add the prefix un-, or "not," and you get unconcealed, which is a great word for describing things that are right out in the open. Your unconcealed love for language is obvious from all of those vocabulary quizzes you're always taking!