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

RATIONALISM

/ˈɹæʃ(ə)nəlɪzəm/11 letters

Definition of RATIONALISM

noun

The theory that reason is a source of knowledge independent of and superior to sense perception.

Wiktionary · CC BY-SA

Where it comes from

From rational + -ism.

Etymology via Wiktionary (CC BY-SA).

Word DNA

How it is built

noun5 syllablescompound-ism

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.

RATIONALISM in OUTLIER

Players have found it on 11 boards so far. 11 players have found it across Outlier's history.

Day 1Day 144
Its 11 boards, across 144 finished boards · taller bars are busier boards
11
Boards found on
25
First board
141
Latest board
25
Longest gap, days

It first turned up on Day 25, 14 June 2026. The most recent board was Day 141, 8 October 2026. Nobody has seen it on a board for 3 days.

First found by a player on Day 25, 14 June 2026.

Built from these letters

RATIONALISM
11
Letters
5
Vowels
6
Consonants
9
Different letters
2
Longest consonant run
2
Longest vowel run

RATIONALISM starts with R and ends with M. Sorted, its letters read AAIILMNORST - the shape to hunt for when the grid is scrambled. A and I appear more than once.

Words that start RATIONA

Its neighbours in the OUTLIER dictionary - shortest first.

Could you have found RATIONALISM?

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 25 - and most players walked straight past it.

Play today's OUTLIER