Definition of run-of-the-mill adjective from the Oxford Advanced Learner's Dictionary

 

run-of-the-mill

 adjective
adjective
BrE
 
; NAmE
 
(often disapproving)
 
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ordinary, with no special or interesting features a run-of-the-mill job These should be run-of-the-mill problems to the experienced manager.
See the Oxford Advanced American Dictionary entry: run-of-the-mill