Main entry: cacophonic, cacophonous
Definition: having an unpleasant sound
Usage: as cacophonous as a henyard- John McCarten
Antonyms: euphonious, euphonous
Definition: having a pleasant sound
Antonyms: smooth
Definition: having a surface free from roughness or bumps or ridges or irregularities
Antonyms: smooth
Definition: of motion that runs or flows or proceeds without jolts or turbulence
Antonyms: smooth
Definition: of the margin of a leaf shape; not broken up into teeth