A quick way to crack "odd word out" questions like this one is to first pin down the core idea behind the two given words, then test each option against that idea one at a time instead of comparing all four options together at once.
Inordinate means going beyond reasonable limits, and huge means very great in size. Put together, the idea both words are pointing at is "being extremely large or beyond the usual measure".
Now check each option against that idea:
Three of the four options, excessive, considerable and enormous, describe magnitude or size exactly like inordinate and huge. Insatiable alone describes an unending desire, so it fails to match the pair.
The correct answer is option 3, Insatiable.