I need a word/phrase/idiom (either adjective or noun) to describe somebody who has devoted their life to practising something but is still not very good at it.
Example:
Look at Uncle, practised music all his life and still not very good at it: he is __________ (adjective) or he is a _________ (noun)
Please note that the person has shown great interest and committment over a lifetime but possibly lacked the special skill or talent required to really excel at their chosen field.
Note 2: failure, misfit, disappointment, ordinary, poor and mediocre are not a good fit for the word I am seeking, but the case of mediocre professional musicians was the sad reality that prompted my question.
Best Answer
I'd suggest Manqué, a somewhat uncommon term borrowed from French. Wikipedia describes it thus: