I / immūtābĭlĭtas
noun hapax

immūtābĭlĭtas

gen. ātis · gender feminine · decl. 3rd
(), , 1. immutabilis
unchangeableness; immutability
unchangeableness, immutability: in factis immutabilitatem apparere, in futuris non item, Cic. Fat. 9, 17.