The phrase "irrelevant skills" refers to abilities or talents that have no importance or significance for a particular task or situation. These skills do not contribute or have any use in achieving the desired outcome or solving a specific problem.
A seemingly irrelevant skill may set you apart from the rest of the crowd. (seltzerfontaine.com)
Do not put in any unrelated or irrelevant skills statements that may define you brilliantly, but have nothing to do with the job for which you are applying. (coverlettersandresume.com)