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Definitions

cardinal

[kahr-dn-l] / ˈkɑr dn l /
ADJECTIVE
important, key
Synonyms
STRONGEST
overriding
STRONG
basic central chief essential first fundamental leading main primary prime principal ruling
WEAK
basal bottom-line constitutive foremost greatest highest indispensable overruling paramount pivotal preeminent vital
Antonyms
STRONG
additional auxiliary extra inessential inferior last least minor nonessential outside peripheral secondary subordinate trivial unimportant unnecessary
WEAK
insignificant negligible

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

So I asked the cardinal to thank the Holy Father for his confidence in me and to assure him that I would do the job with all my heart.

From The Wall Street Journal • Feb. 26, 2026

Jean-Paul Vesco, the Franco-Algerian cardinal of the Catholic Church who serves as the Archbishop of Algiers, wrote in a statement.

From Barron's • Feb. 26, 2026

Before Robby and Al-Hashimi engage in any real ideological tussles, though, she commits the cardinal sin of suggesting they change the trauma center’s nickname to something else.

From Salon • Jan. 8, 2026

His kids had grown up wearing cardinal and gold.

From Los Angeles Times • Sep. 5, 2025

She had just saved him, but she’d broken her grandmother’s cardinal rule: Don’t stand out.

From Anya and the Dragon by Sofiya Pasternack