protuberance Antonyms

sinkage recess pothole overproduction intaglio ingrowth indenture indention indentation indent scallop sipe alveolation sinkhole heavyheartedness punch bowl cavitied trough trench sulcus sinus indenting impression dent crenel concavity bowl basin armpit antrum alveolus alcove depression dimple ichnolite ichnite hollow hole groove follicle embrasure dip dint abjectness