Wiktionary
grottier
a. (en-comparative of: grotty)
WordNet
grottier
See grotty
Usage examples of "grottier".
Combined with the jog home from the beach, this activity left her grottier than young Patti Smith's armpits.
Sinkiang lies north of the Himalayas, north of Tibet, and borders on Afghanistan and some of the grottier bits of the Soviet Union.