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Unnecessary vs Null - What's the difference?

unnecessary | null |

As an adjective unnecessary

is not needed or necessary.

As a noun null is

zero, nil; the cardinal number before einn.

unnecessary

English

Adjective

(en adjective)
  • Not needed or necessary.
  • The automatic child-frightener made clowns unnecessary .
  • * {{quote-news
  • , year=2011 , date=December 14 , author=Steven Morris , title=Devon woman jailed for 168 days for killing kitten in microwave , work=Guardian citation , page= , passage=Robins, of Torquay, had denied a single charge of causing unnecessary suffering to an animal. She claimed the microwave was accidentally turned on by one of the cats after the kitten got inside. But Knutton said the kitten was too small to even get onto the work surface.}}
  • Done in addition to requirements; unrequired.
  • Antonyms

    * (not needed) necessary, needed * (in addition to requirements) required, mandatory

    Synonyms

    * (not needed) superfluous, unneeded, needless, innecessary * (in addition to requirements) additional, innecessary

    Derived terms

    * unnecessarily * unnecessariness

    null

    English

    Noun

    (en noun)
  • A non-existent or empty value or set of values.
  • Zero]] quantity of [[expression, expressions; nothing.
  • (Francis Bacon)
  • Something that has no force or meaning.
  • (computing) the ASCII or Unicode character (), represented by a zero value, that indicates no character and is sometimes used as a string terminator.
  • (computing) the attribute of an entity that has no valid value.
  • Since no date of birth was entered for the patient, his age is null .
  • One of the beads in nulled work.
  • (statistics) null hypothesis
  • Adjective

    (en adjective)
  • Having no validity, "null and void"
  • insignificant
  • * 1924 , Marcel Proust, Within a Budding Grove :
  • In proportion as we descend the social scale our snobbishness fastens on to mere nothings which are perhaps no more null than the distinctions observed by the aristocracy, but, being more obscure, more peculiar to the individual, take us more by surprise.
  • absent or non-existent
  • (mathematics) of the null set
  • (mathematics) of or comprising a value of precisely zero
  • (genetics, of a mutation) causing a complete loss of gene function, amorphic.
  • Derived terms

    * nullity

    Verb

    (en verb)
  • to nullify; to annul
  • (Milton)

    See also

    * nil ----