pointless

As adjectives the difference between pointless and nonsense

is that pointless is having no point or sharp tip; terminating squarely or in a rounded end while nonsense is resulting from the substitution of a nucleotide in a sense codon, causing it to become a stop codon (not coding for an amino-acid).

As a noun nonsense is

letters or words, in writing or speech, that have no meaning or seem to have no meaning.

As a verb nonsense is

to make nonsense of.

As adjectives the difference between unusual and pointless

is that unusual is unlike what is expected; differing in some way from the norm while pointless is having no point or sharp tip; terminating squarely or in a rounded end.

As a noun school

is a group of fish or a group of marine mammals such as porpoises, dolphins, or whales or school can be (us|canada)  an institution dedicated to teaching and learning; an educational institution.

As a verb school

is (of fish) to form into, or travel in a school or school can be to educate, teach, or train (often, but not necessarily, in a school).

As an adjective pointless is

having no point or sharp tip; terminating squarely or in a rounded end.

As adjectives the difference between shallow and pointless

is that shallow is having little depth; significantly less deep than wide while pointless is having no point or sharp tip; terminating squarely or in a rounded end.

As a noun shallow

is a shallow portion of an otherwise deep body of water.

As a verb shallow

is to make or become less deep.

As adjectives the difference between pointless and impolite

is that pointless is having no point or sharp tip; terminating squarely or in a rounded end while impolite is not polite; not of polished manners; wanting in good manners.

Pointless is a related term of inconsequential.

As adjectives the difference between pointless and inconsequential

is that pointless is having no point or sharp tip; terminating squarely or in a rounded end while inconsequential is having no consequence, not consequential, of little importance.

As a noun inconsequential is

something unimportant; something that does not matter.

Insipid is a synonym of pointless.

As adjectives the difference between insipid and pointless

is that insipid is insipid while pointless is having no point or sharp tip; terminating squarely or in a rounded end.

As adjectives the difference between dead and pointless

is that dead is no longer living while pointless is having no point or sharp tip; terminating squarely or in a rounded end.

As an adverb dead

is exactly right.

As a noun dead

is (time when coldness, darkness, or stillness is most intense) Time when coldness, darkness, or stillness is most intense.

As a verb dead

is formerly, "be dead" was used instead of "have died" as the perfect tense of "die".

As adjectives the difference between unfounded and pointless

is that unfounded is having no strong foundation; not based on solid reasons or facts while pointless is having no point or sharp tip; terminating squarely or in a rounded end.

Pointless is a related term of uncivil.

As adjectives the difference between pointless and uncivil

is that pointless is having no point or sharp tip; terminating squarely or in a rounded end while uncivil is not civilized; savage; barbarous; uncivilized.