When something is inordinate, there is far too much of it — more than is reasonable, more than you would normally expect. It almost always goes with amount, number, time, delay, attention, or pride: an inordinate amount of time, an inordinate number of meetings, inordinate delay. It is a fairly formal, slightly bookish word. In everyday talk people just say “way too much” or “far too much.” Though actually, the Latin underneath meant “not arranged, out of order,” not “too big.” English kept a cousin of that idea — something that has gone past proper limits — but dropped the old “messy / disordered” meaning in ordinary use. You will hear it in news, essays, and careful speech, not from a child at the dinner table.