unfertile
/ʌnˈfɜːrtɪl/Definitions
1. adjective
not fertile or capable of producing offspring; barren
“The unfertile land made it challenging for the farmers to grow crops.”
2. adjective
not fertile or capable of producing results; unproductive
“The unfertile efforts of the team resulted in a failed project.”
3. noun
a place or area that is unfertile
“The team had to travel to the unfertile regions to conduct their research.”