Neutral adj.. Metal or other substance not susceptible alloy: not fissile with other materials. The alloy has always contain at least one metal. The word comes from the negative inseparable preposition 'in' and the noun 'alligatio, alligationis', cases nominative and genitive singular equivalent to «link» of the link. Synonyms: iligable, inalmagamble, incombinable, immiscible. Antonyms: aleable, amalgamable, combinable, fissile, ligable, miscible.