also mousey
1.
Mousy hair is a dull light brown colour.
He was aged between 25 and 30, with a medium build and collar-length ~ hair.
ADJ: usu ADJ n
2.
If you describe someone as ~, you mean that they are quiet and shy and that people do not notice them.
The Inspector remembered her as a small, ~ woman, invariably worried.
ADJ: usu ADJ n