big
highland
large
rough
unsmooth
upland
Atlantean
Brobdingnagian
Cyclopean
Gargantuan
Herculean
Homeric
abysmal
alpen
alpestrine
alpigene
alpine
amplitudinous
astronomic
astronomical
awesome
boundless
bulky
colossal
cosmic
craggy
elephantine
enormous
epic
extensive
formidable
galactic
giant
giantlike
gigantic
heroic
high
hilly
huge
immeasurable
immense
infinite
jumbo
king-size
knobby
mammoth
massive
massy
mighty
monster
monstrous
monticuline
monumental
arid
desolate
eastern
fertile
inaccessible
inhospitable
inland
precipitous
rocky
rugged
swampy
undulate
uneven
uninhabited
volcanic
woody