(a.) Of, pertaining to, or resembling, trachyte.

asperous corrugated cragged crinkled crumpled crystal crystalline gravelly gritty harsh ironbound jagged jaggy lapideous lithoid lithoidal monolithic pebbled pebbly porphyritic ragged rock-ribbed rock-strewn rock-studded rockbound rocklike rocky rugged rugose rugous sandy saw-toothed sawtooth scabrous scragged scraggly scraggy serrate serrated shingled shingly snagged snaggled snaggy stonelike stony trachytic uneven unlevel unsmooth wrinkled