Rugged is defined as durable or sturdy, or a rough terrain or landscape. Rugged terrain definition: Terrain is used to refer to an area of land or a type of land when you are considering. 6 days ago · Despite long distances and rugged terrain the settlers established a tightly woven social network that linked farms and farming families. rugged terrain definition in English dictionary, rugged terrain meaning, synonyms , see also 'ruggedly',rugger',ruggedise',ruggedize'. 1 adj A rugged area of land is uneven and covered with rocks, with few trees or plants. Introducing the newest and most versatile tire in our light truck line-up.