Synonyms of zero hour

zero hour

noun

as in crisis

a time or state of affairs requiring prompt or decisive action

we're at the zero hour, so someone has to make a decision

Synonyms & Similar Words

• crisis
• crossroad(s)
• head
• boiling point
• breaking point
• flash point
• emergency
• situation
• moment of truth
• crunch time
• extremity
• point of no return
• juncture
• crunch
• exigency
• Dunkirk
• clutch
• conjuncture
• possibility
• tinderbox
• milestone
• turning point
• last minute
• eleventh hour
• predicament
• climax
• contingency
• condition
• hot water
• corner
• landmark
• last ditch
• pass
• happening
• strait
• spot
• deadlock
• stalemate
• impasse
• pinch
• jam
• hole
• scrape
• fix

Example Sentences

Recent Examples of zero hour

The King video marked the zero hour for new forms of activism using cameras. — Will Potter july 7, Literary Hub, 7 July 2025

Nevertheless, this is an improvement on the zero hours that (many) men were doing 50 years ago. — Meg Walters, Glamour, 9 Nov. 2025

Fighting, however, continued up to the zero hour, with Israeli airstrikes in Lebanon far into the night. — Scott Neuman, NPR, 27 Nov. 2024

English learners can attend a specialized class for learning to speak and write can be accomplished with a before-school (zero hour) or after-school period. — Madeleine Parrish, The Arizona Republic, 8 Oct. 2024

She's stopped, however, when Derringer and Clarke burst in at the zero hour, giving impassioned speeches about the importance of the alliance. — Randall Colburn, EW.com, 3 July 2025

The course will feature the same curriculum as other PE courses, East Aurora High School Principal Jennifer Mitchell said at a curriculum meeting in May, but will be offered during zero hour for the first time next year. — Molly Morrow, Chicago Tribune, 4 June 2025