Synonyms for Edgeless:

adj.

blunt (adjective)
dull.
dull (adjective)
flat.
smooth (adjective)
frictionless, shiny, satin-smooth, glossy, slithery, glazed, glassy, silky, burnished, smooth, even, sleek, flat, marble, varnished, slick, polished, level, Lacquered, streamlined, velvety, satiny, slippery, slilken.

n.

edgeless (noun)
dull.

Other synonyms:

Other relevant words:
dull.