Synonyms of cardinal

cardinal

adjective

as in main

coming before all others in importance

the cardinal rule of medicine: do no harm

Synonyms & Similar Words

• main
• greatest
• highest
• primary
• predominant
• dominant
• foremost
• principal
• big
• first
• chief
• central
• key
• supreme
• leading
• sovereign
• paramount
• overriding
• primal
• premier
• master
• great
• prior
• capital
• grand
• major
• number one
• overbearing
• distinguished
• preeminent
• eminent
• top
• outstanding
• overmastering
• arch
• senior
• illustrious
• notable
• numero uno
• star
• noteworthy
• important
• signal
• stellar
• high-level
• superior
• prestigious
• noble
• influential
• momentous
• mighty
• famous
• incomparable
• significant
• celebrated
• renowned
• unequaled
• unparalleled
• famed
• matchless
• unsurpassed

Antonyms & Near Antonyms

• last
• least
• minor
• trivial
• unimportant
• insignificant
• secondary
• negligible
• slight
• subordinate
• collateral
• inferior
• inconsequential
• trifling
• inconsiderable
• subsidiary

Synonym Chooser

How is the word cardinal different from other adjectives like it?

Some common synonyms of cardinal are essential, fundamental, and vital. While all these words mean "so important as to be indispensable," cardinal suggests something on which an outcome turns or depends.

a cardinal rule in buying a home

Where would essential be a reasonable alternative to cardinal?

The meanings of essential and cardinal largely overlap; however, essential implies belonging to the very nature of a thing and therefore being incapable of removal without destroying the thing itself or its character.

conflict is essential in drama

When could fundamental be used to replace cardinal?

The words fundamental and cardinal are synonyms, but do differ in nuance. Specifically, fundamental applies to something that is a foundation without which an entire system or complex whole would collapse.

fundamental principles of algebra

When is vital a more appropriate choice than cardinal?

While in some cases nearly identical to cardinal, vital suggests something that is necessary to a thing's continued existence or operation.

cut off from vital supplies

Example Sentences

Recent Examples of cardinal

Additional Tips and Considerations There are communities of cardinal enthusiasts who share photos, tips, and beliefs about the appearance of cardinals. — Mary Marlowe Leverette, Southern Living, 5 Sep. 2026

How can any of the Clippers partners or sponsors or fans trust this team with their dollars or their time or their affection after they were apparently caught knowingly breaking one of the NBA’s cardinal rules? — Los Angeles Times, 3 Sep. 2026

Then the musical group collated the various streets, roads, places, drives, boulevards and cardinal directions into 53 seconds of gold. — Doug Turnbull, AJC.com, 23 Aug. 2026

Each academic school hosts their own ceremony, with students attending various departments — plus deans and senior leadership — all clad in their cardinal and gold regalia, marching behind their banners across the campus. — Staff Report, Daily News, 20 Aug. 2026

Phrases Containing cardinal

• cardinal virtue

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