Excess, superfluity, surplus, surplusage, overplus denote something which goes beyond a limit or bound.
Category: Synonyms
Exceptional vs Exceptionable
Exceptional, exceptionable, although not synonyms, are liable to confusion.
Excellence vs Merit vs Virtue vs Perfection
Excellence, merit, virtue, perfection are comparable when meaning a quality or feature of a person or thing that gives him or it especial worth or value.