sinkage

bowl lagoon pan pool pot tub valley watershed

bay concavity depression dip ewer gulf hole hollow sag sink sinkhole vessel washbasin washbowl

increase rise solid

basin bowl crater dent dimple dip excavation hole hollow impression indentation pit pocket sag scoop sink sinkhole vacuity vacuum valley void

fullness increase mountain rise solid

bulge cheerfulness convexity encouragement happiness hope hopefulness protuberance recovery surge

plunge slide

coast crash declension declination decline declivity dip downgrade droop drop drop-off fall grade gradient header hill inclination incline landslide precipitation prolapse sag settlement sinking slant slip slope swoop tailspin tumble

cave-in coming down falling plummeting plunging topple

ascent evenness increase level rise

ascension elevation improvement upgrade

downtrend drop slump

basin concavity declivity descent downswing fall hole hollow inclination incline lowering pitch sag sink sinkhole slip slope

downslide fall-off

increase

ascent rise

cavern

basin bottom bowl cave cavity chamber channel cleft concavity crater cup dale den depression dimple dip dish excavation groove gulf hole indentation notch pit pocket sag scoop sinkhole socket trough vacuity valley void

closure increase mountain rise solid

basin cant concavity depression dip distortion downswing downturn droop fall hollow list settling sink sinkhole sinking slant slip slump tilt

downslide downtrend fall-off

ascent increase rise success

basin bowl concavity crater dent dimple dip excavation hole hollow impression indentation pit pocket sag scoop sink vacuity vacuum valley void

fullness increase mountain rise solid