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
Some are fast to embrace the admittedly exciting bold new possibilities of Artificial Intelligence as the future sine qua non of effective schooling.
—
Vicki Phillips, Forbes, 15 Jan. 2025
Season 2 fulfills this sine qua non with deceptive ease.
—Alison Herman, Variety, 7 Jan. 2025
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
See All Example Sentences for sine qua non
Vicki Phillips, Forbes, 15 Jan. 2025
Season 2 fulfills this sine qua non with deceptive ease.
—Alison Herman, Variety, 7 Jan. 2025
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
See All Example Sentences for sine qua non
Recent Examples of Synonyms for sine qua non
Noun
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To keep our existing customers engaged and attract new ones, continuous product improvement is a must.—
Illia Smoliienko,
Forbes.com,
25 June 2025
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Reebok Women's Classic Az Legacy Sneakers Comfy walking shoes are a must, given how much walking a trip to Japan entails.—
Amelia McBride,
Travel + Leisure,
25 June 2025
Noun
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And in a case about Texas’ requirement that websites verify users are 18 or over, one justice expressed her own parental frustration over trying to control what her children see on the internet.—
Maureen Groppe,
USA Today,
26 June 2025
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Instead, the vote was based mainly on a presentation by Lyn Redwood, the former head of a group founded by Kennedy that has lobbied against vaccine authorizations and requirements.—
Nicole Brown Chau,
CBS News,
26 June 2025
Noun
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Yet in America, where workplace culture has often prized productivity over personal well-being, even suggesting a transition period can feel like asking for too much, rather than advocating for a necessity.—
Justine Sterling Converse,
Time,
16 June 2025
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Two days later, Kennedy named eight new advisers to the panel, including a few who’ve cast doubt on the safety and necessity of some vaccines.—
Brenda Goodman,
CNN Money,
16 June 2025
Cite this Entry
“Sine qua non.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sine%20qua%20non. Accessed 2 Jul. 2025.
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