Coarse and unrefined, crude.
Resembling dirt or soil (i.e. earth).
Like or resembling the earth or of the earth.
Covered with earth (mud, dirt).
Down-to-earth, not artificial, natural.
Dirty, vulgar or obscene, especially in a way that is unpleasant.
Feeling mildly unwell.
Different than usual.
Of the wrong color.