idempotency

noun 0.938

idempotent

noun 0.891

immutability

noun 0.570

impotency

noun 0.557

impotence

noun 0.532

immutable

noun 0.522

equipollence

noun 0.517

impassibility

noun 0.516

ipseity

noun 0.514

identicalness

noun 0.513

invariance

noun 0.512

atemporality

noun 0.512

invariability

noun 0.511

imperishability

noun 0.510

impregnability

noun 0.506

indestructibility

noun 0.505

repeatability

noun 0.501

impenitence

noun 0.500