The rare daily word game sweeping the globe. Find what's hidden in plain sight.
RUSTICLE
Definition of RUSTICLE
noun
An icicle-shaped rust formation, formed on shipwrecks etc. by underwater microbes that consume iron.
Wiktionary · CC BY-SA
Where it comes from
Blend of rust + icicle, coined by Robert Ballard, who first observed them on the wreck of the Titanic in 1986.
Etymology via Wiktionary (CC BY-SA).
Word DNA
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.
RUSTICLE in OUTLIER
Players have found it on 3 boards so far.
It first turned up on Day 168, 4 November 2026. The most recent board was Day 177, 13 November 2026. Nobody has seen it on a board for 1 day.
First ever to find it
on Day 168, 4 November 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
RUSTICLE starts with R and ends with E. Sorted, its letters read CEILRSTU - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Same letters, different word
2 other words use exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.
Words that start RUSTIC
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found RUSTICLE?
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 168 - and most players walked straight past it.
Play today's OUTLIER