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

CAVERNOUS

/ˈkav.ən.əs/9 letters

Definition of CAVERNOUS

adjective

Resembling a cavern in size, shape, or atmosphere.

Wiktionary · CC BY-SA

Where it comes from

Late Middle English cavernous, cavernose, borrowing from Old French caverneux or Latin cavernōsus (“full of hollows or cavities”), from caverna (“a hollow, cavity, cave”) + -ōsus (“-ous, -ose”, adjectival suffix); equivalent to cavern + -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.

CAVERNOUS in OUTLIER

Players have found it on 34 boards so far. 106 players have found it across Outlier's history.

Day 1Day 98
Its 34 boards, across 98 finished boards · taller bars are busier boards
34
Boards found on
9
First board
98
Latest board
15
Longest gap, days

It first turned up on Day 9, 29 May 2026. The most recent board was Day 98, 26 August 2026. It was on the latest finished board.

First found by a player on Day 9, 29 May 2026.

Built from these letters

CAVERNOUS
9
Letters
4
Vowels
5
Consonants
9
Different letters
2
Longest consonant run
2
Longest vowel run

CAVERNOUS starts with C and ends with S. Sorted, its letters read ACENORSUV - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.

Words that start CAVERN

Its neighbours in the OUTLIER dictionary - shortest first.

Could you have found CAVERNOUS?

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 9 - and most players walked straight past it.

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