Home › Words › U › underraterunderraterunderrater means one who gives too low a rating.Among words judged in Lexicurio's Arena, underrater ranks #16,730 of 42,747 for Qualifying.EtymologyFrom underrate + -er.nounOne who gives too low a rating.e.g.“Extreme underraters should show a lower level of achievement and engagement than do accurate perceivers, but not necessarily lower than moderate underraters.” — 2012, Dale H. Schunk, Student Perceptions in the Classroom:Definitions & examples from Wiktionary (CC BY-SA 3.0).