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

HYPOGAEAN

9 letters

Definition of HYPOGAEAN

adjective

Alternative form of hypogean.

HYPOGEAN

adjective

Existing or growing underground.

Wiktionary · CC BY-SA

Word DNA

HYPOGAEAN inherits its ancestry from its root, HYPOGEAN.

Line of descent

  1. Ancient Greek
  2. Latin
  3. English

2 recorded generations before English.

Ancient Greek

Deepest traced root

3rd

of 59 source languages in OUTLIER

12.4%

of traced words share this origin (10,280)

Hellenic

branch · 12.4% of traced words

How it is built

adjectivecompound-an

Same root, HYPOGEAN · 1 relative in the game

Every Ancient Greek word → · The Word DNA of OUTLIER →

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.

HYPOGAEAN in OUTLIER

Players have found it on 6 boards so far.

Day 1Day 166
Its 6 boards, across 166 finished boards · taller bars are busier boards
6
Boards found on
46
First board
134
Latest board
38
Longest gap, days

It first turned up on Day 46, 5 July 2026. The most recent board was Day 134, 1 October 2026. Nobody has seen it on a board for 32 days.

First ever to find it

magpie

on Day 46, 5 July 2026 - before anyone else in Outlier's history. See the Pioneers

Built from these letters

HYPOGAEAN
9
Letters
4
Vowels
5
Consonants
8
Different letters
3
Longest consonant run
3
Longest vowel run

HYPOGAEAN starts with H and ends with N. Sorted, its letters read AAEGHNOPY - the shape to hunt for when the grid is scrambled. A appears more than once.

Words that start HYPOGA

Its neighbours in the OUTLIER dictionary - shortest first.

Could you have found HYPOGAEAN?

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 46 - and most players walked straight past it.

Play today's OUTLIER