mountainous
1. [ adjective ] like a mountain in size and impressiveness
Examples:

"mountainous waves" "a mountainous dark man"

Related terms: large
2. [ adjective ] having hills and crags
Synonyms: craggy hilly cragged
Examples:

"hilly terrain"

Related terms: rough
3. [ adjective ] containing many mountains
Related terms: upland
Similar spelling:   mountain
  monotonous
  mountain_ash
  mountainside
  monotonously
  mountain_man
  mountain_lion
  mountain_pass
  mountain_fern
  mountain_rimu
  mountain_rose
  mountain_chain
  mountain_avens
  mountain_daisy
  mountain_skink
  Mountain_State
  mountain_sheep
  mountain_sumac
  mountaineer
  monition
  mountain_tea
  mountain_oak
  Montandon
  Montanaro
  mountain_box
  mountain_peak
  mountain_tent
  mountain_paca
  mountain_mint
  Mountain_Time
  mountain_lily
  mountain_goat
  mountain_rice
  mountain_pine
  mountain_bike
  mountain_alder
  mountain_birch
  mountain_maple
  mountain_ebony
  mountain_fever
  mountain_grape
  mountain_heath
  mountain_nyala
  mountain_phlox
  mountain_pride
  mountain_quail
  mountain_range
  mountain_trail
  mountain_zebra
  mountaineering
  mountain_devil
  Montanye
  Montanez
  Montanan
  mounting