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 China's military has named two new generals in what may be a precursor to a reorganization at the top following the removal of several of its leaders in a long-running anti-corruption drive. — ABC News, 4 July 2026 The movie is probably more important, however, as a precursor of the sci-fi blockbusters that would follow. — Richard Edwards, Space.com, 4 July 2026 These two motivations – toward others and toward disagreement – are precursors to civility. — Deborah Mower, The Conversation, 2 July 2026 Feeding peanuts to the fans evolved, but the early days, whether for the precursor to Aramark or the work of Stevens, were all about a few simple items. — Tim Newcomb, Forbes.com, 1 July 2026 See All Example Sentences for precursor

Recent Examples of Synonyms for precursor

Noun

The city had a history of assimilating such yearners, most notably Madonna, Swift’s forerunner and her own Middle American transplant success story.

— Steven Zeitchik, HollywoodReporter, 3 July 2026
The group, which includes Chrysler, Fiat, Peugeot and Citroen, is becoming a forerunner in the promising progress of a new type of vehicle battery.

— New Atlas, New Atlas, 15 June 2026

Definition of forerunner

Noun

This type of eating pattern mimics the pattern of our ancestors, which is directly connected with our innate metabolism.

— Melissa Rudy, FOXNews.com, 6 July 2026
Gendron said his ancestors were among the first outsiders to settle the island in the 1700s, when three brothers, fur traders all, left Canada and followed the Mississippi south.

— Andrew Carter, Chicago Tribune, 5 July 2026

Definition of ancestor

Noun

The world looked to the social elite as the ultimate harbingers of style trends and sophistication, giving them a cultural cache and, in turn, a sense of power.

— Moises Mendez II, InStyle, 29 June 2026
And so those last 25 minutes served as a bizarre risk-management experiment that is likely to be a harbinger of what is to come in this tournament.

— Jordan Campbell, New York Times, 24 June 2026

Definition of harbinger

Noun

Most healthy people recover without treatment, but the CDC recommends contacting a health care provider if symptoms are severe, don’t go away or lead to dehydration.

— Tiffani Jackson, Fort Worth Star-Telegram, 3 July 2026
The two-part procedure involves implanting thin electrodes into precise areas of the brain linked to Tourette symptoms, then connecting them under the skin to a pulse generator near the collarbone.

— Gabby Sartori, USA Today, 3 July 2026

Definition of symptom

Noun

The heralds operate like independent contractors, with their own caseloads.

— Helen Lewis, The Atlantic, 9 June 2026
The series serves as an origin story for how Norrin Radd (voiced by Paul Essiembre) becomes the herald of Galactus (James Blendick), then breaks free from the clutches of the Devourer of Worlds to surf around the galaxy and help others.

— Sergio Pereira, Space.com, 3 June 2026

Definition of herald

Noun

The first one features a six-foot tall bronze cast angel whose wings enfold around a granite bench; the sculpture was intended to offer the comfort of an angel’s embrace for visitors who take a seat there.

— Angie Leventis Lourgos, Chicago Tribune, 5 July 2026
The respected 13th-century Spanish rabbi Nachmanides (Ramban) chastises Lot for the atrocity of offering his daughters in place of the angels.

— Encyclopedia Britannica, Encyclopedia Britannica, 2 July 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 11 Jul. 2026.

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Synonyms of precursor

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