as in must
something necessary, indispensable, or unavoidable
an extensive grounding in mathematics is a sine qua non for a career in architecture
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Recent Examples of sine qua non
Frequency Becomes Unstable Frequency is the sine qua non of all electrical systems, from microgrids to the national grid.
—
Llewellyn King, Forbes, 22 Nov. 2024
This consensus mechanism is a sine qua non for verifying transactions without relying on a central authority.
—Gary Weinstein, Forbes, 22 Nov. 2024
The sine qua non for achieving this objective is assurances from Iran about its regional power projection, such as a commitment to not support nonstate actors financially or militarily on the Arabian Peninsula.
—Ali Vaez, Foreign Affairs, 8 May 2023
Goleman underscored its importance, noting that while IQ and technical skills are crucial, emotional intelligence is the sine qua non of leadership.
—Paola Cecchi-Dimeglio, Forbes, 16 Feb. 2024
See All Example Sentences for sine qua non
Llewellyn King, Forbes, 22 Nov. 2024
This consensus mechanism is a sine qua non for verifying transactions without relying on a central authority.
—Gary Weinstein, Forbes, 22 Nov. 2024
The sine qua non for achieving this objective is assurances from Iran about its regional power projection, such as a commitment to not support nonstate actors financially or militarily on the Arabian Peninsula.
—Ali Vaez, Foreign Affairs, 8 May 2023
Goleman underscored its importance, noting that while IQ and technical skills are crucial, emotional intelligence is the sine qua non of leadership.
—Paola Cecchi-Dimeglio, Forbes, 16 Feb. 2024
See All Example Sentences for sine qua non
Recent Examples of Synonyms for sine qua non
Noun
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With Chrome attackers looking to bypass 2FA protections, and compromise passwords, proactive defensive measures are a must.—
Davey Winder,
Forbes.com,
20 May 2025
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Some combination of them would be a must in any deal the team would make for a center.—
Dan Woike,
Los Angeles Times,
16 May 2025
Noun
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Apart from those violations, the CPSC says the swings also fail to meet mandatory warning requirements required to inform parents of the risks of death or serious injury to infants.—
Fernando Cervantes Jr,
USA Today,
22 May 2025
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System requirements: Windows or macOS with an available USB 2.0 port or PlayStation 5 gaming console.—
Mark Sparrow,
Forbes.com,
21 May 2025
Noun
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The second-day pass rushers are intriguing and might have been a necessity with Jadeveon Clowney’s release.—
Dan Pompei,
New York Times,
12 May 2025
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Drinking Water Obviously, water is always a necessity, but flooding associated with heavy rains can also cause a boil order, so having something to drink is essential during and potentially after a storm.—
Maggie Gillette,
Better Homes & Gardens,
12 May 2025
Cite this Entry
“Sine qua non.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sine%20qua%20non. Accessed 25 May. 2025.
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