Wiktionary
decade-long
a. Extending over a decade
Usage examples of "decade-long".
She got away with a decade-long sequence of psychological and physical “breakdowns” that the cheesiest daytime soap would have found excessive, and had been in contempt of court forty-seven times, without ever going to jail, because of Rhinehart’s unwillingness to ask the court to act against her.
Trueminds aestivated during the decade-long hops between planetary civilizations.
Twenty years ago, the now-moist Venerean clouds had parted briefly, and a decade-long rain had fallen, driving the planet's surface acids into chemical battle with molten rock thrown up by three centuries of fresh vulcanism.