plainness

noun 0.597

alluvial plain

noun 0.593

planum

noun 0.581

peen

noun 0.575

flatlands

noun 0.551

plaining

noun 0.550

tableland

noun 0.548

plateau

noun 0.542

peninsula

noun 0.541

peninsular

noun 0.540

pen

noun 0.537

pane

noun 0.536

llano

noun 0.535

plainsman

noun 0.535

plain work

noun 0.528

penne

noun 0.528

piedmont

noun 0.527

plane

noun 0.527

plainware

noun 0.522

pent

noun 0.510

floodplain

noun 0.506