He was not for ever complaining that he was unappreciated and underestimated.
We ought to have been more suspicious, and not have underestimated the enemy.
His influence on science-fiction since then cannot be underestimated.
What was more, they had underestimated the Governor's striking power.
But he underestimated the strength and the volume of the tide that was rising.
I'm inclined to think that from the beginning you two have underestimated Don.
Not that he overestimated the importance of this wrong, but that he underestimated the importance of that.
Cecilia was convinced that Mr. Culbrett underestimated Beauchamp.
The force of such an appeal to a man of Ditmar's type must not be underestimated.
The social feature of the life of the cadet must not be underestimated.