PRECURSOR Synonyms: 54 Similar and Opposite Words

Q: How is the word 'precursor' distinct from other similar nouns?

Some common synonyms of precursor are forerunner , harbinger , and herald . While all these words mean "one that goes before or announces the coming of another," precursor applies to a person or thing paving the way for the success or accomplishment of another. // 18th century poets like Burns were precursors of the Romantics

Q: In what contexts can 'forerunner' take the place of 'precursor'?

The words forerunner and precursor are synonyms, but do differ in nuance. Specifically, forerunner is applicable to anything that serves as a sign or presage. // the blockade was the forerunner of war

Q: How are the words 'harbinger' and 'herald' related as synonyms of 'precursor'?

Harbinger and herald both apply, chiefly figuratively, to one that proclaims or announces the coming or arrival of a notable event. // their early victory was the harbinger of a winning season // the herald of a new age in medicine

precursor

noun

pri-ˈkər-sər

Definition of precursor

as in forerunner

one that announces or indicates the later arrival of another 18th-century lyric poets like Robert Burns were precursors of the Romantics

Synonyms & Similar Words

Relevance

as in ancestor

something belonging to an earlier time from which something else was later developed a precursor of the modern eggplant

Synonyms & Similar Words

Antonyms & Near Antonyms

Synonym Chooser

How is the word precursor distinct from other similar nouns?

Some common synonyms of precursor are forerunner, harbinger, and herald. While all these words mean "one that goes before or announces the coming of another," precursor applies to a person or thing paving the way for the success or accomplishment of another.

18th century poets like Burns were precursors of the Romantics

In what contexts can forerunner take the place of precursor?

The words forerunner and precursor are synonyms, but do differ in nuance. Specifically, forerunner is applicable to anything that serves as a sign or presage.

the blockade was the forerunner of war

How are the words harbinger and herald related as synonyms of precursor?

Harbinger and herald both apply, chiefly figuratively, to one that proclaims or announces the coming or arrival of a notable event.

their early victory was the harbinger of a winning season

the herald of a new age in medicine

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of precursor The coal and steel organization was the first among European institutions that were precursors to what eventually became the European Union. — ABC News, 28 Sep. 2026 But hypertension kills silently, one person at a time, and is the precursor to many heart attacks, strokes and kidney failure. — Garth Walker, Chicago Tribune, 28 Sep. 2026 Depots could reconstitute expended stocks on site, as quickly as mineral precursors can be extracted and processed. — Dan Driscoll, Foreign Affairs, 28 Sep. 2026 Fugue states are a precursor to the breakdown of memory; Simon’s agent begins experiencing episodes of a condition called transient global amnesia. — Emily Witt, New Yorker, 26 Sep. 2026 See All Example Sentences for precursor

Recent Examples of Synonyms for precursor

Noun

Rather than try to replicate his forerunners’ styles of success, Ternus has so far played to his own strengths—which are also those of Apple, a company that first and foremost builds beautiful products that spark productivity, creativity, and joy.

— Andrew R. Chow, Time, 15 Oct. 2026
Dubbed the ‘American Turtle’ for its appearance, the submarine made three attempts to blow up British ships without success, but is considered the forerunner of modern submarines.

— Staff Report, Hartford Courant, 16 Sep. 2026

Definition of forerunner

Noun

The changes would have affected the environments in which life developed and evolved, from the age of the dinosaurs through to some of our oldest primate ancestors.

— Keith Cooper, Space.com, 13 Oct. 2026
In his view, Flagg Mountain’s fire-scarred stumps corroborate what his community already knew—that their ancestors used fire for centuries—and reinforce their sense of responsibility to care for the land.

— M. R. O’Connor, New Yorker, 12 Oct. 2026

Definition of ancestor

Noun

Breast Cancer Month events The Gulliver swimmers’ July fundraiser for the American Cancer Society was a harbinger of what remains a busy October in Miami-Dade and Broward for Breast Cancer Month awareness events.

— Howard Cohen, Miami Herald, 15 Oct. 2026
Related What were once blips on the modern music timeline now feel like harbingers of things to come for 2027.

— Leila Cobo, Billboard, 2 Oct. 2026

Definition of harbinger

Noun

The victim began experiencing extreme tiredness, inability to sleep and other unexplained symptoms soon after attending a prestigious conference in August, Gomelsky said.

— Arkansas Online, Arkansas Online, 15 Oct. 2026
The alleged victim continues to experience symptoms from the poisoning, including not being able to focus, tiring easily and a loss of sensation in his left hand, Gomelsky said.

— CBS News, CBS News, 14 Oct. 2026

Definition of symptom

Noun

This increasingly seamless connection between runway collections and store stock heralds a new meaning for commercial, repositioning the role of the runway.

— Joe Bobowicz, Vogue, 8 Oct. 2026
The project heralds from Israeli filmmakers Yuval Abraham and Rachel Szor, two of the four co-directors behind 2025 Oscar-winning documentary No Other Land.

— Andreas Wiseman, Deadline, 24 Aug. 2026

Definition of herald

Noun

Helen, Rob and Emily McDaniel's wood-fire-and-coal-cooking restaurant, is a cozy downtown spot that serves up chicken thighs, angel biscuits, and tomato pie.

— Leslie Pariseau, Condé Nast Traveler, 12 Oct. 2026
The memorial, which features sculptures of an angel and bronze doves, is located in a cemetery that is also home to the world’s largest Catholic mausoleum.

— Luis Andres Henao, Los Angeles Times, 9 Oct. 2026

Definition of angel

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preconditions

precursor

precursors

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“Precursor.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/precursor. Accessed 18 Oct. 2026.

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Synonyms of precursor

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