A mixture of the words adorn and adorable, this word can be used to describe something a person is wearing, or anything of your choice. It could be equivalent to saying "That's cute!" or "That's amazing!".
Sarah: Hey, Trish.
Sarah: O-M-G, your hair looks so adornable!
Trish: Really, I did it myself!
Sarah: It is.
Trish: Well, that shirt is just adornable too!