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
Despite its decades-long ubiquity in our lives and our iCals, the building has just as often stirred negative feelings.
—
Steven Zeitchik,
HollywoodReporter,
3 July 2026
And while many know Mariska Hargitay from her decades-long run on Law & Order or as one of the Knicks' biggest hype women, she can also be considered among fashion's unexpected trendsetters.
—
Amanda Le,
InStyle,
2 July 2026
Another decades-long wave of immigration followed, this time from different parts of the world.
—
Albert Sun,
New York Times,
2 July 2026
Experts note this isn't just short-term inflation but a decades-long trend where productivity gains haven't translated into median wage growth.
—
William Arruda,
Forbes.com,
2 July 2026
See All Example Sentences for decades-long
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Steven Zeitchik,
HollywoodReporter,
3 July 2026
And while many know Mariska Hargitay from her decades-long run on Law & Order or as one of the Knicks' biggest hype women, she can also be considered among fashion's unexpected trendsetters.
—
Amanda Le,
InStyle,
2 July 2026
Another decades-long wave of immigration followed, this time from different parts of the world.
—
Albert Sun,
New York Times,
2 July 2026
Experts note this isn't just short-term inflation but a decades-long trend where productivity gains haven't translated into median wage growth.
—
William Arruda,
Forbes.com,
2 July 2026
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 6 Jul. 2026.
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