Underestimated, say (5)
I believe the answer is:
erred
(Other definitions for erred that I've seen before include "Was mistaken" , "Made mistake, was incorrect" , "slipped up" , "Went astray" , "Made a mistake, was wrong" .)
I believe the answer is:
erred
(Other definitions for erred that I've seen before include "Was mistaken" , "Made mistake, was incorrect" , "slipped up" , "Went astray" , "Made a mistake, was wrong" .)