formidable

As an adjective formidable

is causing fear, dread, awe or admiration as a result of size, strength, or some other impressive quality; commanding respect; causing wonder or astonishment.

As a noun formidableness is

the quality of being formidable.

As adjectives the difference between formidable and unformidable

is that formidable is causing fear, dread, awe or admiration as a result of size, strength, or some other impressive quality; commanding respect; causing wonder or astonishment while unformidable is not formidable.

As an adjective formidable

is causing fear, dread, awe or admiration as a result of size, strength, or some other impressive quality; commanding respect; causing wonder or astonishment.

As a noun formidability is

the state of being formidable.

As adjectives the difference between formidable and superformidable

is that formidable is causing fear, dread, awe or admiration as a result of size, strength, or some other impressive quality; commanding respect; causing wonder or astonishment while superformidable is (rare) very formidable; causing great dread or very difficult to overcome.