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

INFRASONIC

10 letters

Definition of INFRASONIC

adjective

Having frequencies below the human audible range

Wiktionary · CC BY-SA

Where it comes from

From infra- + sonic.

Etymology via Wiktionary (CC BY-SA).

Word DNA

How it is built

adjectivecompoundinfra-

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.

INFRASONIC in OUTLIER

Players have found it on 1 board so far.

Day 1Day 139
Its one board, across 139 finished boards · taller bars are busier boards
1
Boards found on
139
First board
0
Days since seen

It first turned up on Day 139, 6 October 2026. It was on the latest finished board.

First ever to find it

alb

on Day 139, 6 October 2026 - before anyone else in Outlier's history. See the Pioneers

Built from these letters

INFRASONIC
10
Letters
4
Vowels
6
Consonants
8
Different letters
3
Longest consonant run
1
Longest vowel run

INFRASONIC starts with I and ends with C. Sorted, its letters read ACFIINNORS - the shape to hunt for when the grid is scrambled. I and N appear more than once.

Words that start INFRAS

Its neighbours in the OUTLIER dictionary - shortest first.

INFRASOUNDINFRASOUNDSINFRASPECIFICINFRASTRUCTUREINFRASTRUCTURES

Could you have found INFRASONIC?

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 139 - and most players walked straight past it.

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