basin Antonyms

levee outshoot overhang peak pinnacle plate prominence promontory protrusion protuberance saddleback saucer shelf outgrowth outcrop optimism loftiness lordliness mesa miracle molehill monticle monticule mound mount mountain nobility nodule sierra spine swelling gibbosity gibbousness anthill hopefulness kopje kyphosis eyeshade massif munro disinflation mountain top outthrust low relief Johannesburg high relief tallness tor tuberosity tumefaction