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precursors

NOUN

something that indicates outcome or event beforehand

Synonyms

STRONGEST

forerunner harbinger

STRONG

herald messenger outrider usher vanguard

NOUN

something that precedes another

Synonyms

STRONGEST

forerunner prototype

STRONG

ancestor antecedent forebear original originator parent pioneer predecessor

WEAK

antecessor foregoer

Antonyms

STRONG

derivative descendant

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.

U.S. officials want China’s help going after the makers of precursors, though Washington has long been frustrated by what officials have viewed as Beijing dragging its feet.

From The Wall Street Journal • Apr. 3, 2026

This is a problem the EU and its precursors have been thinking about for a long time.

From Barron's • Mar. 30, 2026

And what about jet fuels and fertiliser precursors also shut in to the Gulf?

From BBC • Mar. 9, 2026

What do you think looking for precursors like this does for our historical understanding of fascism?

From Slate • Mar. 2, 2026

They turn out to be little separate creatures, the colonial posterity of migrant prokaryocytes, probably primitive bacteria that swam into ancestral precursors of our eukaryotic cells and stayed there.

From "The Lives of a Cell" by Lewis Thomas