Letuncial is a sans-serif typeface in which the shapes of the letters are derived from uncial, a writing style in the early medieval period. Like uncial, it has no true upper-case letters. Rather it has two sets of letters that are interchangeable.

Fonts Letunical Inline Overlay-Middle and Letunical Inline Overlay Inside are designed to be layered with Letunical Inline to produce bicolored or tricolored letters and Letunical Shadow Inside is designed to layered with Letunical Shadow to produce bicolored letters.