understatement

This term describes a deliberate minimization of a situation, often used as a tool for dry humor or social politeness. It creates a gap between the reality of a situation and the description of it, which typically signals to the listener that the speaker is being ironic or modest.

As a countable noun, it follows standard English pluralization rules. It is frequently paired with adjectives like massive, gross, or slight to indicate the degree of discrepancy between the statement and the truth.