meaningless

As adjectives the difference between nominal and meaningless

is that nominal is of, resembling, relating to, or consisting of a name or names while meaningless is lacking meaning.

As a noun nominal

is (grammar) a noun or word group that functions as a noun phrase.

As adjectives the difference between unimportant and meaningless

is that unimportant is petty; not important or noteworthy while meaningless is lacking meaning.

As adjectives the difference between irrational and meaningless

is that irrational is not rational; unfounded or nonsensical while meaningless is lacking meaning.

As a noun irrational

is a real number that can not be expressed as the quotient of two integers, an irrational number.

As a noun senselessness

is the state of being senseless; unsense.

As an adjective meaningless is

lacking meaning.

As adjectives the difference between meaningless and unmeaningful

is that meaningless is lacking meaning while unmeaningful is not meaningful.

Meaningless is a synonym of undecipherable.

As adjectives the difference between meaningless and undecipherable

is that meaningless is lacking meaning while undecipherable is not easily deciphered; difficult to read.

Meaningless is a synonym of unintelligible.

As adjectives the difference between meaningless and unintelligible

is that meaningless is lacking meaning while unintelligible is not intelligible; unable to be understood.

As adjectives the difference between meaningless and meanless

is that meaningless is lacking meaning while meanless is (archaic) meaningless, lacking meaning.

As adjectives the difference between preposterous and meaningless

is that preposterous is absurd, or contrary to common sense while meaningless is lacking meaning.