What's the plural form of impermissibility? Here's the word you're looking for.
Answer
The noun impermissibility can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be impermissibility.
However, in more specific contexts, the plural form can also be impermissibilities e.g. in reference to various types of impermissibilities
or a collection of impermissibilities.
Examples
In State practice, the vast majority of objections are based on the impermissibility of the reservation to which the objection is made.
Some delegations pointed to the need for further study on the legal effects of the impermissibility of a reservation, including with respect to reservations to human rights treaties.
You should approach your family members politely first and explain the impermissibility of their actions.
The nullity of the reservation arises from its impermissibility.
The petitioners are right in their submission with regard to impermissibility of collecting cess in this regard.
Their call for present discussion reflects no disagreement about its present ethical impermissibility.