From Longman Dictionary of Contemporary Englishfallow periodfallow perioda time when nothing is done or achieved The band went through a fallow period in the late 90s. → fallow
Examples from the Corpus
fallow period• Properly looked after they can produce several crops a year and remain fertile for centuries without needing a fallow period.• There are sudden, dramatic leaps in small children's learning, interspersed with long fallow periods when nothing seems to happen. 