The Collaborative International Dictionary
Subangular
Subangular \Sub*an"gu*lar\, a. Slightly angular.
Wiktionary
subangular
a. (context geology English) Slightly angular; having rather blunt angles
Usage examples of "subangular".
The coarse-grained friable sandstone, in which the lodges have been excavated, consists chiefly of subangular and rounded grains of quartz and feldspar with a small proportion of black particles.