Synonyms of precursor

precursor

noun

pri-ˈkər-sər 

1

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

• forerunner
• harbinger
• symptom
• herald
• sign
• angel
• outrider
• foretaste
• foregoer
• messenger
• forewarning
• foreshadowing
• advertiser
• announcer
• runner
• portent
• foreshadower
• presage
• omen
• crier
• proclaimer
• courier
• bellwether
• foreboder
• foreboding
• auspice
• prefiguring
• blazoner
• augury
• boding
• mark

2

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

• forerunner
• ancestor
• prototype
• predecessor
• antecedent
• archetype
• original
• granddaddy
• originator
• daddy
• model
• foregoer
• mother
• sire
• father

Antonyms & Near Antonyms

• descendant
• derivative
• by-product
• outgrowth
• offshoot
• son
• daughter
• spin-off

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

Recent Examples of precursor

Prosecutors alleged that Chee knew the facility well and was well aware of the dangers inside the Esparto warehouse, which included a stash of precursor chemicals used to make explosives. — Daniel Lempres, Sacbee.com, 13 Aug. 2026

But outside spending groups supporting Marshall and opposing Hamilton have already made major television ad buys this month — a precursor to what’s expected to be an expensive election cycle. — Matthew Kelly, Kansas City Star, 11 Aug. 2026

Less wealthy associations within and outside the confederation have relied heavily on FIFA funds via Infantino’s FIFA Forward program, the precursor to FFE, which was introduced by him in 2016. — Aleks Klosok, CNN Money, 8 Aug. 2026

Jack Kilby, the inventor of the integrated circuit, or microchip, and the handheld calculator—early precursors of AI. — Jordan Blum, Fortune, 8 Aug. 2026