unmergeable

Adjective

 * 1) Not mergeable. Incapable of being merged.
 * (example): As biological creatures human beings have indivisible and unmergeable bodies with only limited capacities for specialization. (source : "Social Theory of International Politics" by Alexander Wendt)

Translations

 * German: unzusammenführbar
 * Japanese:, , 不可合
 * Spanish: infusionable