underdo
Verb
Meaning
To do less than is requisite or proper; -- opposed to overdo.
To do less thoroughly than is requisite; specifically, to cook insufficiently; as, to underdo the meat; -- opposed to overdo.
Source: Webster's dictionarySynonyms
jonah
failure
incomplete
unfinished
unfortunate
loser
precook
parboil
underdone
little guy
undercook
prebake
incompleted
half-bake
weaker one