Mousy (adjective)

Timid and unassuming.

Origin:

From the word "mouse", possibly influenced by the small and timid nature of the rodent.

Examples:

1. She had always been mousy, never standing up for herself.
2. He had a mousy personality and was easily overlooked.
3. She had mousy brown hair and brown eyes.
4. The mousy girl turned into a confident woman.
5. He had a mousy voice, it was barely audible.