Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “perfectionist”


noun [C]     /pəˈfek.ʃən.ɪst/ US  /pɚ-/
a person who wants everything to be perfect and demands the highest standards possible: She's such a perfectionist that she notices even the tiniest mistakes.Wanting everything to be right
(Definition of perfectionist noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of perfectionist

Definitions of “perfectionist” in other dictionaries

Word of the Day


willing to give money, help, kindness, etc., especially more than is usual or expected

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More