Letters that make undyed
d, e, n, u, y are letters that make 'undyed'
1 possible definitions for 'undyed'
Under this definition, undyed is an adjective and has the following properties:
unbleached, uncolored have the same meaning as 'undyed'
natural is similar to undyed.
"unbleached blonde hair", "her hair is uncolored", "undyed cotton"