[1] : The Collaborative International Dictionary of English v.0.48

underdo \un`derdo"\, v. i.
   to do less than is requisite or proper; -- opposed to
   overdo. --grew.
   1913 webster
see also:
overdo 

[2] : The Collaborative International Dictionary of English v.0.48

underdo \un`derdo"\, v. t.
   to do less thoroughly than is requisite; specifically, to
   cook insufficiently; as, to underdo the meat; -- opposed to
   overdo.
   1913 webster
see also:
overdo 

Underdo >> U Words
Underdo, definition of term: Underdo
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