The rare daily word game sweeping the globe. Find what's hidden in plain sight.
SULK
Definition of SULK
verb
To express ill humor or offence by remaining sullenly silent or withdrawn.
Wiktionary · CC BY-SA
Where it comes from
Back-formation from sulky, of uncertain origin. Probably from Middle English *sulke, *solke (attested in solcenesse (“idleness; laziness”), from Old English āsolcennys (“idleness; slothfulness; sluggishness; laziness”), from āsolcen (“sulky, languid”), from past participle of Old English āseolcan (“be slow; be weak or slothful; languish”), from Proto-Germanic *selkaną (“to fall in drops; dribble; droop”), from Proto-Indo-European *sélǵ-o-nom, from *selǵ- (“to let go, send”). Cognate with several Indo-Iranian words deriving from Proto-Indo-Iranian *sarȷ́- (such as Sanskrit सृजति (sṛjáti), सर्जन (sárjana), सृक (sṛká)), possibly Hittite 𒊭𒀠𒀝𒍣 (ša-al-ak-zi /šalkzi/, “knead, mix”), although the semantic connection is weak.
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.
SULK in OUTLIER
Players have found it on 14 boards so far. 17 players have found it across Outlier's history.
It first turned up on Day 30, 19 June 2026. The most recent board was Day 107, 4 September 2026. Nobody has seen it on a board for 4 days.
First ever to find it
on Day 30, 19 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
SULK starts with S and ends with K. Sorted, its letters read KLSU - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
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 SULK
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 30
Could you have found SULK?
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 30 - and most players walked straight past it.
Play today's OUTLIER