a.

1. 粗野的，粗鲁的，无礼的
   I did not intend to be rude.

   我并不想粗鲁无礼。

2. 粗糙的，简陋的[B]
   People of the Stone Age used rude tools.

   石器时代的人使用粗糙简陋的工具。

3. 未加工的，天然的[B]
   They are buying rude cotton.

   他们正在收购原棉。

4. 未开化的，原始的，野蛮的[B]
   These rude tribesmen live in the rain forest.

   这些未开化的部落人生活在雨林之中。

5. 粗略的，大略的[B]
6. 强健的，茁壮的[B]
7. 猥亵的，淫乱的
   He told a rather rude joke, and every one looked embarrassed.

   他讲了一个相当粗俗的笑话，使每个人都非常尴尬。

adj.

1. offensively impolite or ill-mannered.
   ▸referring to sex in a way considered improper and offensive.
2. very abrupt:
   a rude awakening.
3. chiefly Brit. vigorous or hearty.
4. dated roughly made or done; lacking sophistication.
   ▸archaic ignorant and uneducated.