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.
NAmE//pərˈfɛkʃəˌnɪzəm//
noun [uncountable] Her perfectionism is evident at work and at home.See perfectionist in the Oxford Advanced Learner's DictionaryCheck pronunciation: perfectionist