[ kuhm-plee-shuh-nist ]

  1. (in a video game) a player who attempts to complete every challenge and earn every achievement or trophy: I’m not really a completionist, so I skipped the side missions and focused on the main story quests.

Origin of completionist

First recorded in 1970–75; completion + -ist

Words Nearby completionist Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use completionist in a sentence

  • We think more trades should keep these completionists in mind — not because there’s any inherent advantage, just because it’s fun.

    The Summer Of Playoffs | Sarah Shachat | August 18, 2020 | FiveThirtyEight