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
… 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
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Advertisement Advertisement Between Hollywood’s decades-long obsession with thinness and the recent swings of the body-positivity movement, GLP-1s have ushered in a new era of lessness.
—Anne Marie Chaker, Time, 20 Sep. 2025
On Wednesday, Saudi Arabia and Pakistan signed a formal mutual defense pact, strengthening their decades-long partnership.
—semafor.com, 19 Sep. 2025
The role added another chapter to his decades-long friendship and long-standing collaboration with Scorsese, their sixth film together and far from their last.
—Glenn Garner, PEOPLE, 19 Sep. 2025
Courtesy of Eau Claire Distillery David Farran, the founder and president of Eau Claire Distillery, never envisioned opening a Canadian craft distillery throughout his decades-long career.
—John Kell, Forbes.com, 15 Sep. 2025
See All Example Sentences for decades-long
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Anne Marie Chaker, Time, 20 Sep. 2025
On Wednesday, Saudi Arabia and Pakistan signed a formal mutual defense pact, strengthening their decades-long partnership.
—semafor.com, 19 Sep. 2025
The role added another chapter to his decades-long friendship and long-standing collaboration with Scorsese, their sixth film together and far from their last.
—Glenn Garner, PEOPLE, 19 Sep. 2025
Courtesy of Eau Claire Distillery David Farran, the founder and president of Eau Claire Distillery, never envisioned opening a Canadian craft distillery throughout his decades-long career.
—John Kell, Forbes.com, 15 Sep. 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 21 Sep. 2025.
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