The rare daily word game sweeping the globe. Find what's hidden in plain sight.
ANTISERUMS
Definition of ANTISERUMS
noun
plural of antiserum
noun
A serum prepared from human or animal sources containing antibodies able to counter certain diseases or toxins.
Wiktionary · CC BY-SA
Word DNA
ANTISERUMS inherits its ancestry from its root, ANTISERUM.
How it is built
Same root, ANTISERUM · 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.
ANTISERUMS in OUTLIER
Players have found it on 1 board so far.
It first turned up on Day 140, 7 October 2026. Nobody has seen it on a board for 12 days.
First ever to find it
on Day 140, 7 October 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
ANTISERUMS starts with A and ends with S. Sorted, its letters read AEIMNRSSTU - the shape to hunt for when the grid is scrambled. S appears more than once.
Same letters, different word
One other word uses exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.
Words that start ANTISE
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found ANTISERUMS?
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 140 - and most players walked straight past it.
Play today's OUTLIER