Used when two or more things do not fit well together, such as skills and jobs, expectations and reality, or design elements.
There is a mismatch between his abilities and his job duties.
I think this color combination is a mismatch.
The mismatch between job openings and job seekers' skills has become a problem.
A mismatch arose between the design and the functionality.
I was told that the color combination of those clothes was a mismatch.
The company is trying to resolve the mismatch between personnel and duties.