Unfit (adjective)

Not suitable, not appropriate or not capable.

Origin:

From the word "unfit" which means not suitable or not appropriate.

Examples:

1. The building was declared unfit for human habitation.
2. He was deemed unfit for military service.
3. The car was unfit for the road.
4. The food was unfit for consumption.
5. She was deemed unfit to be a parent.