projection Antonyms

alveolation root proof pothole perusal nook middle intaglio indention indentation scallop sipe shack sinkhole doormat punch bowl cavitied whole truth trench substance sinus indenting ichnolite ichnite concavity cavity basis base armpit antrum analysis alveolus alcove core crenel dejection honeycomb groove follicle fact embrasure dint dimple depression dent accident