I. “+ adjective
: not observable : indiscernible , imperceptible
II. noun
: something unobservable especially even in principle
multiple unobservables and subsistent entities at pleasure — A.E.Duncan-Jones
I. “+ adjective
: not observable : indiscernible , imperceptible
II. noun
: something unobservable especially even in principle
multiple unobservables and subsistent entities at pleasure — A.E.Duncan-Jones
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012