■ adjective
1》 offensively impolite or ill-mannered.
↘referring to sex in a way considered improper and offensive.
2》 very abrupt: a ~ awakening.
3》 chiefly Brit. vigorous or hearty.
4》 dated roughly made or done; lacking sophistication.
↘ archaic ignorant and uneducated.
Derivatives
~ly adverb
~ness noun
~ry noun
Origin
ME: from OFr., from L. rudis 'unwrought', figuratively 'uncultivated'; related to rudus 'broken stone'.