Rugged

• (n.) Harsh; hard; crabbed; austere; -- said of temper, character, and the like, or of persons. • (n.) Full of asperities on the surface; broken into sharp or irregular points, or otherwise uneven; not smooth; rough; as, a rugged mountain; a rugged road. • (n.) Stormy; turbulent; tempestuous; rude. • (n.) Vigorous; robust; hard...
Found on http://thinkexist.com/dictionary/meaning/rugged/

rugged

adjective sturdy and strong in constitution or construction; enduring; `a rugged trapper who spent months in the wilderness`; `those that survive are stalwart rugged men`; `with a house full of boys you have to have rugged furniture`
Found on https://www.encyclo.co.uk/local/20974

Rugged

Rug'ged adjective [ See Rug , noun ] 1. Full of asperities on the surface; broken into sharp or irregular points, or otherwise uneven; not smooth; rough; as, a rugged mountain; a rugged road. « The rugged bark of some broad elm.»...
Found on http://www.encyclo.co.uk/webster/R/103

rugged

Big and strong.
Found on http://www.extension.org/pages/27530/goat-glossary-of-terms#.Uj3dsj9rPgY

rugged

Big, strong.
Found on http://www.danekeclublambs.com/Glossary.html

rugged

[adj] - very difficult 2. [adj] - sturdy and strong in constitution or construction
Found on http://www.webdictionary.co.uk/definition.php?query=rugged
No exact match found