immense
adj.adj. extremely large or great in size, amount, or degree. You use it to describe something that feels much bigger than normal.
adj. vast or huge in scale; immeasurable or exceptionally great in degree. Often used to intensify abstract nouns like 'pressure', 'relief', or 'potential'.
The project requires an immense amount of work.
The new stadium is an immense structure that dominates the city's skyline.
The researchers faced immense pressure to deliver results before the funding cycle ended, leading to several sleepless nights in the laboratory.
From Middle English immens, inmens, from Old French immense, from Latin immensus, from in- (“not”) + mensus (“measured”). Compare incommensurable.
Typically functions as an attributive adjective before a noun; it is non-gradable, so 'very immense' is usually avoided.