un·couth 
(ŭn-kth)
(ŭn-kth)adj.
1. Crude; unrefined.
2. Awkward or clumsy; ungraceful.
3. Archaic Foreign; unfamiliar.
[Middle English, unknown, strange, from Old English uncūth : un-, not; see UN-1 + cūth, known; see gnō- in the Appendix of Indo-European roots.]
un·couthly adv.
un·couthness n.