The rare daily word game sweeping the globe. Find what's hidden in plain sight.
IMPERVIOUS
Definition of IMPERVIOUS
adjective
Unaffected or unable to be affected by something.
Wiktionary · CC BY-SA
Where it comes from
From Latin impervius (“that cannot be passed through”), from in- (“not”) + pervius (“letting things through”).
Etymology via Wiktionary (CC BY-SA).
Word DNA
Line of descent
- Latin
- English
One recorded step before English.
Deepest traced root
1st
of 59 source languages in OUTLIER
33.1%
of traced words share this origin (9,860)
branch · 33.1% of traced words
How it is built
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
IMPERVIOUS in OUTLIER
Players have found it on 37 boards so far. 113 players have found it across Outlier's history.
It first turned up on Day 14, 3 June 2026. The most recent board was Day 150, 17 October 2026. Nobody has seen it on a board for 2 days.
First ever to find it
on Day 14, 3 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
IMPERVIOUS starts with I and ends with S. Sorted, its letters read EIIMOPRSUV - the shape to hunt for when the grid is scrambled. I appears more than once.
Words that start IMPERV
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 14
Could you have found IMPERVIOUS?
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 14 - and most players walked straight past it.
Play today's OUTLIER