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

CESTOIDEAN

10 letters

Definition of CESTOIDEAN

noun

One of the Cestoidea.

Wiktionary · CC BY-SA

Where it comes from

Cestoidea + -an

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.

CESTOIDEAN in OUTLIER

Players have found it on 1 board so far.

Day 1Day 119
Its one board, across 119 finished boards · taller bars are busier boards
1
Boards found on
115
First board
4
Days since seen

It first turned up on Day 115, 12 September 2026. Nobody has seen it on a board for 4 days.

First ever to find it

mugley

on Day 115, 12 September 2026 - before anyone else in Outlier's history. See the Pioneers

Built from these letters

CESTOIDEAN
10
Letters
5
Vowels
5
Consonants
9
Different letters
2
Longest consonant run
2
Longest vowel run

CESTOIDEAN starts with C and ends with N. Sorted, its letters read ACDEEINOST - the shape to hunt for when the grid is scrambled. E appears more than once.

Words that start CESTOI

Its neighbours in the OUTLIER dictionary - shortest first.

CESTOICESTOIDCESTOIDSCESTOIDEANS

Could you have found CESTOIDEAN?

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 115 - and most players walked straight past it.

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The OUTLIER card for CESTOIDEANDownload image