IRRESOLVABLE

Ir′re‐solv″a‐ble (?), a. [[Pref. ir- not + resolvable. Cf. Irresoluble.]] Incapable of being resolved; not separable into component parts. Irresolvable nebulæ (Astron.), nebulæ of a cloudlike appearance, which have not yet been resolved by the telescope into stars. Sir W. Herschel.