having a roughly broken, rocky, hilly, or jagged surface

rugged ground.

(of a face) wrinkled or furrowed, as by experience or the endurance of hardship.

roughly irregular, heavy, or hard in outline or form; craggy

Lincoln's rugged features.

rough, harsh, or stern, as persons or nature.

full of hardship and trouble; severe; hard; trying

a rugged life.

tempestuous; stormy

rugged weather.

harsh to the ear

rugged sounds.

rude, uncultivated, or unrefined.

homely or plain

rugged fare.

capable of enduring hardship, wear, etc.; strong and tough

rugged floor covering; a rugged lumberjack.

adjective

even , flat , level , smooth , calm , gentle , mild , moderate , courteous , nice , refined , sophisticated , easy , facile , small , tiny , weak

adjective

asperous , broken , coarse , craggy , difficult , furrowed , harsh , hilly , irregular , jagged , leathery , lumpy , mountainous , ragged , rocky , rough , roughhewn , scabrous , scraggy , stark , uneven , unlevel , unpolished , unrefined , unsmooth , weather-beaten , worn , wrinkled , bitter , brutal , hard , inclement , intemperate , rigorous , stormy , tempestuous , turbulent , barbarous , blunt , boorish , churlish , graceless , ill-bred , loutish , rude , uncultured , arduous , demanding , exacting , formidable , hairy * , heavy * , heavy sledding , knotty * , laborious , large order , mean , murder * , no picnic , operose , stern , strenuous , taxing , tough , trying , uncompromising , uphill * , able-bodied , athletic , brawny , energetic , forceful , hale , hardy , healthy , husky , indefatigable , lusty , muscular , robust , sturdy , unflagging , vigorous , well-built , cragged , ironbound , hard-bitten , hard-handed , dirty , heavy , raging , roiled , roily , tumultuous , ugly , violent , wild , knockabout , rough-and-tumble , (colloq.) robust , austere , boisterous , bumpy , burly , crabbed , fierce , severe , strong , surly , uncivil , uncouth , unfeeling , unkempt , weathered