Vastness, Immensity
This page is the CodyCross answer for the clue below from Prehistory, Group 1257, Puzzle 1 (Climate Change).
Question is: Vastness, Immensity
and the answer is: ENORMITY
Word Meaning:
ENORMITY — (obsolete) Deviation from what is normal or standard; irregularity, abnormality.
Definitions from Wiktionary.