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
Recent Examples on the Web
After a decades-long investigation, police in California have identified a serial rapist who died by suicide in Michigan in 1997, linking him to multiple attacks in the state and across the country.
—Nour Rahal, Freep.com, 6 Sep. 2025
What started as a protest against outsiders controlling the town turned into a decades-long tradition that still lives on today.
—Tiffani Jackson, Fort Worth Star-Telegram, 5 Sep. 2025
Stern, 71, has also been long-rumored to be retiring after his decades-long career as a talk show host.
—Caitlin Huston, HollywoodReporter, 4 Sep. 2025
Thomas Schumacher, a leading force in growing Disney Theatrical Group into one of the most successful and influential theater producers on Broadway and around the world, will step down as DTG’s chief creative officer at the end of this month after a decades-long tenure at the company.
—Gordon Cox, Variety, 3 Sep. 2025
See All Example Sentences for decades-long
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Nour Rahal, Freep.com, 6 Sep. 2025
What started as a protest against outsiders controlling the town turned into a decades-long tradition that still lives on today.
—Tiffani Jackson, Fort Worth Star-Telegram, 5 Sep. 2025
Stern, 71, has also been long-rumored to be retiring after his decades-long career as a talk show host.
—Caitlin Huston, HollywoodReporter, 4 Sep. 2025
Thomas Schumacher, a leading force in growing Disney Theatrical Group into one of the most successful and influential theater producers on Broadway and around the world, will step down as DTG’s chief creative officer at the end of this month after a decades-long tenure at the company.
—Gordon Cox, Variety, 3 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 13 Sep. 2025.
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