The rare daily word game sweeping the globe. Find what's hidden in plain sight.
ACTINIDES
Definition of ACTINIDES
noun
plural of actinide
noun
Any of the 15 radioactive elements of the periodic table from actinium to lawrencium that are positioned under the lanthanides, to which they have similar chemistry.
Wiktionary · CC BY-SA
Word DNA
ACTINIDES inherits its ancestry from its root, ACTINIDE.
How it is built
Same root, ACTINIDE · 1 relative in the game
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
ACTINIDES in OUTLIER
Players have found it on 38 boards so far. 66 players have found it across Outlier's history.
It first turned up on Day 28, 17 June 2026. The most recent board was Day 150, 17 October 2026. Nobody has seen it on a board for 3 days.
First ever to find it
on Day 28, 17 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
ACTINIDES starts with A and ends with S. Sorted, its letters read ACDEIINST - the shape to hunt for when the grid is scrambled. I appears more than once.
Same letters, different word
3 other words use exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.
Words that start ACTINI
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 28
Could you have found ACTINIDES?
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 28 - and most players walked straight past it.
Play today's OUTLIER