rude
–adjective, rud·er, rud·est.
1. discourteous or impolite, esp. in a deliberate way: a rude reply.
2. without culture, learning, or refinement: rude, illiterate peasants.
3. rough in manners or behavior; unmannerly; uncouth.
4. rough, harsh, or ungentle: rude hands.
5. roughly wrought, built, or formed; of a crude construction or kind: a rude cottage.
6. not properly or fully developed; raw; unevolved: a rude first stage of development.
7. harsh to the ear: rude sounds.
8. without artistic elegance; of a primitive simplicity: a rude design.
9. violent or tempestuous, as the waves.
10. robust, sturdy, or vigorous: rude strength.
11. approximate or tentative: a rude first calculation of costs.