Definition of perfectionist noun from the Oxford Advanced American Dictionary

 

perfectionist

 noun
noun
NAmE//pərˈfɛkʃənɪst//
 
(sometimes disapproving)
 
jump to other results
a person who likes to do things perfectly and is not satisfied with anything less He was a perfectionist in his art and could be difficult to work for. perfectionist standards To reach that level of playing you have to be an absolute perfectionist.
perfectionism
 
jump to other results
NAmE//pərˈfɛkʃəˌnɪzəm//
 
noun [uncountable] Her perfectionism is evident at work and at home.
See the Oxford Advanced Learner's Dictionary entry: perfectionist