Subsidiarity as a noun is the principle that government power ought to reside at the lowest feasible level (i.e. at the local or regional level, instead of the national or supranational level, unless the latter presents clear advantages) while Subordinateness as a noun is the property or condition of being subordinate.
Part of speech: noun
Definition: The principle that government power ought to reside at the lowest feasible level (i.e. at the local or regional level, instead of the national or supranational level, unless the latter presents clear advantages)
Part of speech: noun
Definition: The property or condition of being subordinate.
We hope you now know whether to use Subsidiarity or Subordinateness in your sentence.