IPA: /ɪnˈɔːrdɪnət.nəs/
KK: /ɪnˈɔrdənɪtnəs/
The quality of being excessive or immoderate, going beyond what is reasonable or normal.
The inordinateness of his demands surprised everyone at the meeting.
Inordinateness → It is formed from "in-" (meaning not) and "ordinatus" (from Latin, meaning arranged or ordered) and the suffix "-ness" (meaning the state of being). The word describes the state of being not arranged or excessively disordered.
Think of 'not' ('in-') being 'ordered' ('ordinatus') — that's why inordinateness means a state of being excessively disordered.