The phrase "decade of failure" refers to a period of ten years where most attempts or efforts have been unsuccessful or not achieved the desired results.
Sentences with «decade of failure»
Despite decades of failure, a hardy band of engineers continues to dream. (discovermagazine.com)
... to break decades of failure and build world - class infrastructure to support a world - beating economy. (politics.co.uk)
Computer models are finally mimicking the MJO, after decades of failure. (science.sciencemag.org)