No-man's-land

имя существительное то же, что и no-man's land 1) а) ничейная земля б) [военное дело] нейтральная полоса 2) нечто среднее, ни то ни сё

Большой англо-русский словарь

No-man's-land

noun 1. a. an area of unowned, unclaimed, or uninhabited land b. an unoccupied area between opposing armies c. an area not suitable or used for occupation or habitation Example: downtown was a retailing no-man's-land 2. an anomalous, ambiguous, or indefinite area especially of operation, application, or jurisdiction Example: the no-man's-land between art and science

Merriam-Webster's Collegiate Dictionary