The rare daily word game sweeping the globe. Find what's hidden in plain sight.
MIREX
Definition of MIREX
noun
The pesticide and fire retardant perchloropentacyclodecane, which is a persistent organic pollutant.
Wiktionary · CC BY-SA
Where it comes from
(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium. Particularly: “trade name?”)
Etymology via Wiktionary (CC BY-SA).
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
MIREX in OUTLIER
Players have found it on 2 boards so far.
It first turned up on Day 85, 13 August 2026. The most recent board was Day 97, 25 August 2026. Nobody has seen it on a board for 5 days.
First ever to find it
on Day 85, 13 August 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
MIREX starts with M and ends with X. Sorted, its letters read EIMRX - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram. It uses X - among the least common letters in written English.
Same letters, different word
2 other words use exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.
Words that start MIREX
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found MIREX?
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 85 - and most players walked straight past it.
Play today's OUTLIER