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
Chicago will continue its decades-long tradition of dyeing the river green, attracting thousands upon thousands of spectators.
—Hannah Hudnall, USA Today, 12 Mar. 2026
While only two people were ever charged criminally in America — Epstein and his co-conspirator Ghislaine Maxwell — dozens of civil cases have been brought in connection with the financier’s decades-long exploitation of young women and girls.
—Robin Abcarian, Mercury News, 11 Mar. 2026
The decades-long struggle to make Victory a viable neighborhood should give pause to proponents of tearing down City Hall to build an arena and entertainment district.
—Mark Lamster
architecture Critic, Dallas Morning News, 11 Mar. 2026
Irsay purchased the manuscript at Christie’s in 2001, launching what would become a decades-long collecting journey.
—Adam Reiss, NBC news, 11 Mar. 2026
See All Example Sentences for decades-long
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Hannah Hudnall, USA Today, 12 Mar. 2026
While only two people were ever charged criminally in America — Epstein and his co-conspirator Ghislaine Maxwell — dozens of civil cases have been brought in connection with the financier’s decades-long exploitation of young women and girls.
—Robin Abcarian, Mercury News, 11 Mar. 2026
The decades-long struggle to make Victory a viable neighborhood should give pause to proponents of tearing down City Hall to build an arena and entertainment district.
—Mark Lamster
architecture Critic, Dallas Morning News, 11 Mar. 2026
Irsay purchased the manuscript at Christie’s in 2001, launching what would become a decades-long collecting journey.
—Adam Reiss, NBC news, 11 Mar. 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 14 Mar. 2026.
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