bumpkinly(s = adj.all) hick, rustic, unsophisticated - awkwardly simple and provincial; "bumpkinly country boys"; "rustic farmers"; "a hick town"; "the nightlife of Montmartre awed the unsophisticated tourists"
Derived form noun bumpkin₁

   unsophisticated in a manner resembling a lifelong resident of rural areas; as, bumpkinly country boys. [WordNet 1.5]