underdo

To do to an insufficient degree, especially to cook for too short a time.

To put under; subject.

To do less thoroughly than is requisite; especially, to cook insufficiently: as, the beef is underdone.

To act below one’s abilities; do less than one can.

To do less than is requisite.

To do less than is requisite or proper; — opposed to overdo.

To do less thoroughly than is requisite; specifically, to cook insufficiently; ; — opposed to overdo.

To put under, subject.

To do something insufficiently; especially to undercook.

To act below one’s abilities; do less than one can.