The rare daily word game sweeping the globe. Find what's hidden in plain sight.

HYDROGENOUS

/haɪˈdɹɑd͡ʒənəs/11 letters

Definition of HYDROGENOUS

adjective

of, related to, or containing hydrogen

Wiktionary · CC BY-SA

Where it comes from

From hydrogen + -ous.

Etymology via Wiktionary (CC BY-SA).

Rarity score
Withheld
Revealed only in play
Tier
Withheld
Find it yourself

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 11 boards so far. 17 players have found it across Outlier's history.

Day 1Day 99
Its 11 boards, across 99 finished boards · taller bars are busier boards
11
Boards found on
14
First board
99
Latest board
28
Longest gap, days

It first turned up on Day 14, 3 June 2026. The most recent board was Day 99, 27 August 2026. It was on the latest finished board.

First found by a player on Day 14, 3 June 2026.

Also on

Built from these letters

HYDROGENOUS
11
Letters
4
Vowels
7
Consonants
10
Different letters
4
Longest consonant run
2
Longest vowel run

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.

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.

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