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

AQUIFEROUS

/əˈkwɪfəɹəs/10 letters

Definition of AQUIFEROUS

adjective

Of or pertaining to an aquifer

Wiktionary · CC BY-SA

Where it comes from

From aqui- + -ferous.

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.

AQUIFEROUS in OUTLIER

Players have found it on 4 boards so far. 23 players have found it across Outlier's history.

Day 1Day 102
Its 4 boards, across 102 finished boards · taller bars are busier boards
4
Boards found on
52
First board
101
Latest board
35
Longest gap, days

It first turned up on Day 52, 11 July 2026. The most recent board was Day 101, 29 August 2026. Nobody has seen it on a board for 1 day.

First ever to find it

sopiriye

on Day 52, 11 July 2026 - before anyone else in Outlier's history. See the Pioneers

Built from these letters

AQUIFEROUS
10
Letters
6
Vowels
4
Consonants
9
Different letters
1
Longest consonant run
2
Longest vowel run

AQUIFEROUS starts with A and ends with S. Sorted, its letters read AEFIOQRSUU - the shape to hunt for when the grid is scrambled. U appears more than once. It uses Q - among the least common letters in written English.

Words that start AQUIFE

Its neighbours in the OUTLIER dictionary - shortest first.

Could you have found AQUIFEROUS?

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 52 - and most players walked straight past it.

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The OUTLIER card for AQUIFEROUSDownload image