The rare daily word game sweeping the globe. Find what's hidden in plain sight.
HYDROGENOUS
Definition of HYDROGENOUS
adjective
of, related to, or containing hydrogen
Wiktionary · CC BY-SA
Other senses
HYDROGENOUS carries 3 further meanings.
Pertaining to or containing hydrogen.
Formed or produced by water: applied to rocks formed by the action of water, in contradistinction to pyrogenous rocks, or those formed by the action of fire.
adjective
Of or pertaining to hydrogen; containing hydrogen.
Where it comes from
From hydrogen + -ous.
Etymology via Wiktionary (CC BY-SA).
Word DNA
How it is built
Same root, HYDROGEN · 12 relatives in the game
HYDROGENOUS in a sentence
“Acord then moderates the neutrons with a hydrogenous material, which could easily have been water or plastic, but which Acord has ingeniously chosen to be a 6cm slice of beeswax.”
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
HYDROGENOUS in OUTLIER
Players have found it on 36 boards so far. 70 players have found it across Outlier's history.
It first turned up on Day 14, 3 June 2026. The most recent board was Day 162, 29 October 2026. Nobody has seen it on a board for 2 days.
First found by a player on Day 14, 3 June 2026.
Built from these letters
HYDROGENOUS starts with H and ends with S. Sorted, its letters read DEGHNOORSUY - the shape to hunt for when the grid is scrambled. O appears more than once.
Words that start HYDROGE
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 14
Could you have found HYDROGENOUS?
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 14 - and most players walked straight past it.
Play today's OUTLIER