Perhaps he over- estimated the immediate danger, not taking sufficiently into account the strength and loyalty of her affection for him; but, on the other hand, he perhaps undervalued the depth and force of those feelings to the consciousness of which she had first been roused that day.
"My Little Lady"
Eleanor Frances Poynter
Once the estrangement took place, however, I think that he undervalued what was opposed to him, both in respect of its power and of its quality.
"John Redmond's Last Years"
Stephen Gwynn
She had undervalued Fritz's nature.
"The Woman With The Fan"
Robert Hichens