immense
ih-MENSadjMeaning extremely large or great
Memory hook IM-MENSE: too big to MEASURE. Kai tries to measure the whale with his little ruler and gives up after the tail. It is immense: too big to measure.
The blue whale is an immense animal, longer than two school buses.
In context Looking out from the plane, she was struck by how immense the desert was: hour after hour, nothing but sand in every direction.
Similar huge, enormous, vast, gigantic
Opposite tiny, minute, minuscule
From Latin immensus, “immeasurable”: in- (not) + mensus (measured).