The rare daily word game sweeping the globe. Find what's hidden in plain sight.
PROTACTINIUMS
Definition of PROTACTINIUMS
Wiktionary has no entry for PROTACTINIUMS itself. This is its base word, PROTACTINIUM.
noun
A chemical element (symbol Pa) with atomic number 91. A dense, silvery-gray actinide metal. An atom of this element.
Wiktionary · CC BY-SA
Where it comes from
The origin recorded for PROTACTINIUM.
From proto- + actinium.
Etymology via Wiktionary (CC BY-SA).
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
PROTACTINIUMS in OUTLIER
Players have found it on 1 board so far.
It first turned up on Day 120, 17 September 2026. It was on the latest finished board.
First ever to find it
on Day 120, 17 September 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
PROTACTINIUMS starts with P and ends with S. Sorted, its letters read ACIIMNOPRSTTU - the shape to hunt for when the grid is scrambled. T and I appear more than once.
Could you have found PROTACTINIUMS?
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 120 - and most players walked straight past it.
Play today's OUTLIER