not special in any way; "run-of-the-mill boxing"; "your run-of-the-mine college graduate"; "a unexceptional an incident as can be found in a lawyer's career"
If you describe something as unexceptional, you mean that it is ordinary, not very interesting, and often disappointing. Since then, Michael has lived an unexceptional life The rest of the summer was unexceptional. = unremarkable exceptional