Wiktionary
vb. (present participle of understate English)
Usage examples of "understating".
But he evidently had a Blair Truth Detector like the one Mom had, and realized that if anything, I was understating a little how much it bothered me to fly.
Now that she did, it seemed to her that Oscar Wilde was understating the case.
Haverstraw said over the intercom, Gullick looked at the overlay of Area 51 and tried to make understating the obvious, as she reeled in collective and sense of the various symbols.
To say that he was making no attempt to mask the sneer on his face, the contempt in his voice would have been understating the case.
Judging from the highly combustible tone of her letters she was considerably understating the case.
Prescott observed mildly, understating the case by several orders of magnitude.
In fact, Benjamin was probably understating the Erewhonese reaction—not least because Erewhon had been forced to live under the shadow of Peep conquest for far longer than Grayson had.
For that matter, they might also believe that understating their true strength would cause us to feel less alarmed and so be less likely to act preemptively.