formidable

As adjectives the difference between elusive and formidable

is that elusive is while 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 adjectives the difference between formidable and commanding

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 commanding is tending to give commands, authoritarian.

As a verb commanding is

.

As a noun commanding is

the act of giving a command.

As adjectives the difference between fortitudinous and formidable

is that fortitudinous is having fortitude; courageous while 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 adjectives the difference between formidable and prodigious

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 prodigious is very big in size or quantity; gigantic; colossal; huge.

As adjectives the difference between impossible and formidable

is that impossible is not possible; not able to be done or happen while 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 impossible

is an impossibility.

As adjectives the difference between enormous and formidable

is that enormous is (obsolete)  deviating from the norm; unusual, extraordinary while 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 adjectives the difference between ferocious and formidable

is that ferocious is marked by extreme and violent energy while 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 adjectives the difference between doubtable and formidable

is that doubtable is capable of being doubted; doubtful; dubious; dubitable. See usage notes below.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 adjectives the difference between formidable and challenging

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 challenging is difficult, hard to do.

As a verb challenging is

.

As a noun challenging is

the act of making a challenge.

As adjectives the difference between formidable and rigorous

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 rigorous is manifesting, exercising, or favoring rigour; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration.