noun
ADJECTIVE
▪ flat
▪ steep
▪ hilly , mountainous , rocky , rough , rugged , uneven
▪ arid , barren , desert
▪ boggy , marshy , swampy ( esp. AmE )
▪ difficult , harsh , inhospitable , treacherous
▪
difficult ~ for walking
▪ familiar , unknown
▪ open
▪
Tank warfare dominated campaigns in open ~.
▪ urban
VERB + TERRAIN
▪ cross , navigate , negotiate , traverse
▪ explore
▪ know
▪
local fighters who know the ~
PREPOSITION
▪ across … ~ , over … ~
▪
It took us the whole day to trek across the rocky ~.