Adjective
-
very difficult
severely testing stamina or resolution
"a rugged competitive examination"
"the rugged conditions of frontier life"
"the competition was tough"
"it's a tough life"
"it was a tough job"
-
topographically very uneven
"broken terrain"
"rugged ground"
-
having long narrow shallow depressions (as grooves or wrinkles) in the surface
"furrowed fields"
"his furrowed face lit by a warming smile"
-
sturdy and strong in constitution or construction
enduring
"with a house full of boys you have to have rugged furniture"