Question

what is understatement?
describing something as smaller or less significant than it actually is
the use of language that states the opposite of what is actually meant
verbal irony employed to mock, ridicule, or criticize
the use of extreme exaggeration to make a point

Explanation:

Understatement is a figure - of - speech where something is described as being smaller, less important, or less significant than it actually is.

Answer:

describing something as smaller or less significant than it actually is