gigantic

As an adverb enormously

is extremely, greatly: to an enormous degree.

As an adjective gigantic is

very large.

As adjectives the difference between gigantic and jumbo

is that gigantic is very large while jumbo is especially large or powerful.

As a noun jumbo is

an especially large or powerful person, animal or thing.

As adjectives the difference between gigantic and sizable

is that gigantic is very large while sizable is fairly large.

As adjectives the difference between spacious and gigantic

is that spacious is having much space; roomy while gigantic is very large.

Gigantic is a related term of grand.

As an adjective gigantic

is very large.

As a proper noun grand is

a commune in france.

As adjectives the difference between gigantic and majestic

is that gigantic is very large while majestic is having qualities of splendor or royalty.

Gigantic is a related term of stout.

As an adjective gigantic

is very large.

As a proper noun stout is

.

Gigantic is a related term of expansive.

As adjectives the difference between gigantic and expansive

is that gigantic is very large while expansive is able to be expanded.

Gigantic is a related term of many.

As an adjective gigantic

is very large.

As a determiner many is

an indefinite large number of.

As a pronoun many is

a collective mass of people.

As a noun many is

a multitude; a great aggregate; a mass of people; the generality; the common herd.

As adjectives the difference between gigantic and towering

is that gigantic is very large while towering is very tall or high, particularly used to denote something that is taller than anything around it.

As a verb towering is

present participle of lang=en.

As a noun towering is

the act or condition of being high above others.