Synonyms of mountainous

mountainous

adjective

as in vast

unusually large

the seemingly mountainous obstacles he had to overcome while growing up

Synonyms & Similar Words

• vast
• huge
• gigantic
• enormous
• giant
• massive
• tremendous
• colossal
• mammoth
• immense
• astronomical
• monumental
• astronomic
• monstrous
• mighty
• bumper
• oceanic
• monster
• sizable
• titanic
• big
• oversized
• heroic
• Himalayan
• gargantuan
• cosmic
• great
• oversize
• planetary
• prodigious
• grand
• galactic
• humongous
• cosmical
• super
• mega
• majestic
• elephantine
• heroical
• herculean
• cyclopean
• considerable
• substantial
• vasty
• jumbo
• humungous
• whopping
• pharaonic
• handsome
• formidable
• extensive
• good
• king-size
• staggering
• supersized
• gigantesque
• sizeable
• leviathan
• voluminous
• imposing
• major
• Brobdingnagian
• overgrown
• bulky
• walloping
• king-sized
• outsized
• infinite
• super-duper
• whacking
• supersize
• tidy
• gross
• goodly
• lofty
• overwhelming
• cavernous
• grandiose
• outsize
• largish
• hefty
• stupendous
• hulking
• monolithic
• towering
• august
• immeasurable
• boundless

Antonyms & Near Antonyms

• tiny
• diminutive
• microscopic
• miniature
• minuscule
• infinitesimal
• micro
• microscopical
• small
• pocket
• pygmy
• bitty
• wee
• teeny
• little bitty
• Lilliputian
• teensy
• midget
• smallish
• puny
• little
• minute
• petite
• mini
• undersized
• undersize
• microminiature
• teeny-weeny
• teensy-weensy
• bantam
• dwarfish
• dinky
• pint-size
• pint-sized
• half-pint