to report as less or fewer than is correct: to underreport the enemy's strength.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use underreport in a sentence
If anything, we figured that corporations would be more likely to underreport their releases than to wildly overstate them.What’s Polluting the Air? Not Even the EPA Can Say. | by Ava Kofman | December 16, 2021 | ProPublica
Manning, who had resigned a month earlier, alleges she was forced to underreport sexual-assault cases.