involving an extremely important decision or result; decisive; critical: a crucial experiment.
of the form of a cross; cross-shaped.
- cru·ci·al·i·ty [kroo-shee-al-i-tee, kroo-shal-], /ˌkru ʃiˈæl ɪ ti, kruˈʃæl-/, noun
- cru·cial·ly, adverb
- non·cru·cial, adjective
- non·cru·cial·ly, adverb
- pre·cru·cial, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use crucial in a sentence
The less crucial amino acids seem to help organisms deal with oxidation, a 2018 study concluded, hinting that LUCA’s forerunners incorporated them while evolving in an environment rich in oxygen or other oxidizing compounds.
With venture capital crucial to catalyze business growth, the funding model needs to change.Funds are emerging to back African female tech founders | Abubakar Idris | February 12, 2021 | Quartz
However, we’ve seen users are spending more time on TikTok than Facebook, and it is crucial for marketers to provide those users with content.‘The momentum is there’: In 2021, marketers are starting to see TikTok as a staple of the social budget | Kristina Monllos | February 12, 2021 | Digiday
In an article published today in the journal Science, researchers stressed that building an understanding of how these particles are affecting us—especially the most tiny pieces—is crucial.Microplastics are everywhere. Here’s what that means for our health. | Ula Chrobak | February 11, 2021 | Popular-Science
ProPublica went on to use the disciplinary data we published to do more crucial stories.ProPublica’s “NYPD Files” Wins John Jay College/Harry Frank Guggenheim Award for Excellence in Criminal Justice Reporting | by ProPublica | February 11, 2021 | ProPublica
All it needs is one more “pipe” to select and transmit the crucial information.Red Tape and Black Boxes: Why We Keep ‘Losing’ Airliners in 2014 | Clive Irving | December 29, 2014 | THE DAILY BEAST
During two years in Iranian custody, Abdolhamid provided crucial details of how Jundullah operated.The Dangerous Drug-Funded Secret War Between Iran and Pakistan | Umar Farooq | December 29, 2014 | THE DAILY BEAST
Some pilots consider the infrared marker to be crucial to the close air-support mission to support ground troops.Newest U.S. Stealth Fighter ‘10 Years Behind’ Older Jets | Dave Majumdar | December 26, 2014 | THE DAILY BEAST
And some of the most compelling statements came from a powerful, crucial set of equality allies: corporations.
From the looks of it, mistletoe is a keystone species and plays a crucial role in that forest ecosystem.
A crucial question, very much affected by what the Admiral told me last night.Gallipoli Diary, Volume I | Ian Hamilton
"I'm so very sorry," Anson said, slightly flustered, remembering that this was always the crucial moment in a sale.The Salesman | Waldo T. Boyd
Colonel Mildmay considered; they were approaching the crucial point, and he took his resolution.Robin Redbreast | Mary Louisa Molesworth
Bernadotte moved slowly, and did not render his force effective at the crucial moment.The Life of Napoleon Bonaparte | William Milligan Sloane
Some of my green men had funked just at the crucial moment, and I had all but shot one.Four Days | Hetty Hemenway
British Dictionary definitions for crucial
involving a final or supremely important decision or event; decisive; critical
informal very important
slang very good
- crucially, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012