The rare daily word game sweeping the globe. Find what's hidden in plain sight.
EXOTHERMAL
Definition of EXOTHERMAL
adjective
exothermic
Wiktionary · CC BY-SA
Another sense
EXOTHERMAL carries a second meaning.
adjective
(of a chemical reaction or compound) occurring or formed with the liberation of heat
Where it comes from
From exo- + thermal.
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.
EXOTHERMAL in OUTLIER
Players have found it on 18 boards so far. 71 players have found it across Outlier's history.
It first turned up on Day 32, 21 June 2026. The most recent board was Day 145, 12 October 2026. Nobody has seen it on a board for 3 days.
First ever to find it
on Day 32, 21 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
EXOTHERMAL starts with E and ends with L. Sorted, its letters read AEEHLMORTX - the shape to hunt for when the grid is scrambled. E appears more than once. It uses X - among the least common letters in written English.
Words that start EXOTHE
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 32
Could you have found EXOTHERMAL?
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 32 - and most players walked straight past it.
Play today's OUTLIER