facile Antonyms

strenuous scaly sandpaper rutted rumpling rugged rough ridged rejective recondite raveled purist profound problematic scrunch scuffing stony stiff sticky stickleback spinous speechless sophistical sophistic sinuous silhouette shedding severe seriatim precautious polymorphous plicated omniform notched niggling mysterial murderous multiplex multiform multifarious mucilaginous motley mosaic mixed miscellaneous onerous orphic pimply pettifogging petrous