1. (of farmland) plowed but left unseeded for a period to restore fertility
Usage: agricultural
2. inactive or dormant

1. land that is plowed but left unseeded
Usage: agricultural

1. to plow (land) without seeding it
Usage: agricultural

Examples

• The farmer left the field fallow for a year to improve the soil.
• After the busy season, her creative mind lay fallow for several months.
• The company’s research department remained fallow during the budget cuts.
• They decided to fallow the back forty acres this spring.
• The fallow stretched for miles across the countryside.
• His talents had been lying fallow since graduation.
• The land needs to lie fallow between crop rotations.