decades-long
adjective
de·cades-long
ˈde-ˌkādz-ˌlȯŋ 
variants
or less commonly decadeslong
: lasting two or more decades : occurring over a period of two or more decades
a decades-long career
… no discussion of wolf research would be complete without mention of this fascinating, decades-long study.—
Robert R. Ream
Robert R. ReamHis decades-long accumulation of books makes an eclectic mix …—Stephen Mihm
Stephen MihmExamples of decades-long in a Sentence
Recent Examples on the Web
Is the American Left finally waking up from its decades-long climate catastrophism stupor?
—MSNBC Newsweek, 5 Dec. 2025
Murphy's legacy and decades-long career on-screen and onstage are chronicled in the Netflix documentary Being Eddie.
—John Russell, PEOPLE, 5 Dec. 2025
Following a three-week trial in Manhattan, a federal jury convicted Hernández in March 2024 for his leadership role in what the Justice Department called a decades-long drug trafficking conspiracy.
—Josh Meyer, USA Today, 5 Dec. 2025
Executive produced by 50 Cent (Diddy’s longtime rival, stemming from a decades-long feud), the series connects one version of the Diddy narrative back to broader questions about media and the power imbalances that exist throughout the entertainment industry.
—Alison Foreman, IndieWire, 5 Dec. 2025
See All Example Sentences for decades-long
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MSNBC Newsweek, 5 Dec. 2025
Murphy's legacy and decades-long career on-screen and onstage are chronicled in the Netflix documentary Being Eddie.
—John Russell, PEOPLE, 5 Dec. 2025
Following a three-week trial in Manhattan, a federal jury convicted Hernández in March 2024 for his leadership role in what the Justice Department called a decades-long drug trafficking conspiracy.
—Josh Meyer, USA Today, 5 Dec. 2025
Executive produced by 50 Cent (Diddy’s longtime rival, stemming from a decades-long feud), the series connects one version of the Diddy narrative back to broader questions about media and the power imbalances that exist throughout the entertainment industry.
—Alison Foreman, IndieWire, 5 Dec. 2025
See All Example Sentences for decades-long
Cite this Entry
“Decades-long.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/decades-long. Accessed 13 Dec. 2025.
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