The rare daily word game sweeping the globe. Find what's hidden in plain sight.
UNDERFIT
Definition of UNDERFIT
verb
To use a statistical model that has too few parameters relative to the size of the sample.
Wiktionary · CC BY-SA
Where it comes from
From under- + fit.
Etymology via Wiktionary (CC BY-SA).
Word DNA
How it is built
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
UNDERFIT in OUTLIER
Players have found it on 1 board so far.
It first turned up on Day 128, 25 September 2026. It was on the latest finished board.
First ever to find it
on Day 128, 25 September 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
UNDERFIT starts with U and ends with T. Sorted, its letters read DEFINRTU - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Words that start UNDERF
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found UNDERFIT?
OUTLIER is a daily word game. One grid, the same grid for everybody, and the words nobody else spots are the ones that pay. This word was on Day 128 - and most players walked straight past it.
Play today's OUTLIER