The rare daily word game sweeping the globe. Find what's hidden in plain sight.
PERTINACIOUS
Definition of PERTINACIOUS
adjective
Holding tenaciously to an opinion or purpose.
Wiktionary · CC BY-SA
Where it comes from
From pertinace + -ious, from Old French pertinace, from Latin pertinax, from per- (“very”) + tenax (“tenacious”).
Etymology via Wiktionary (CC BY-SA).
Word DNA
Line of descent
- Latin
- Old French
- English
2 recorded generations before English.
Deepest traced root
1st
of 59 source languages in OUTLIER
33.1%
of traced words share this origin (9,723)
branch · 33.1% of traced words
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.
PERTINACIOUS in OUTLIER
Players have found it on 13 boards so far. 22 players have found it across Outlier's history.
It first turned up on Day 69, 28 July 2026. The most recent board was Day 149, 16 October 2026. It was on the latest finished board.
First ever to find it
on Day 69, 28 July 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
PERTINACIOUS starts with P and ends with S. Sorted, its letters read ACEIINOPRSTU - the shape to hunt for when the grid is scrambled. I appears more than once.
Words that start PERTINAC
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found PERTINACIOUS?
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 69 - and most players walked straight past it.
Play today's OUTLIER