different between impactful vs null

English

Etymology

From impact +? -ful

Pronunciation

• IPA^(key): /??mpæktf?l/, /?m?pæktf?l/

Adjective

impactful (comparative more impactful, superlative most impactful)

1. Having impact. [from c. 1940]
   • 1969, W. James Popham, "Curriculum Materials," Review of Educational Research, vol. 39, no. 3, p. 321:

     It is strongly recommended that in the future such investigations not be reported in the literature unless they are designed to test the effects of some hopefully impactful treatment variation.

   • 1982, S. E. Taylor and S. C. Thompson, "Stalking the Elusive 'Vividness' Effect," Psychological Bulletin, vol. 89, no. 2, p. 155:

     Everyone knows that vividly presented information is impactful and persuasive.

   • 2001, A. Mukherjee and W. D. Hoyer, "The Effect of Novel Attributes on Product Evaluation," The Journal of Consumer Research, vol. 28, no. 3, p. 463:

     A dominant finding in psychology and consumer behavior has been that negative information is more impactful than positive information.

Usage notes

• Proscribed by some authorities, who recommend influential or effective instead. Alternatively, one may rephrase to have an impact or have a strong impact. However, many usages can be found, particularly in business and education as well as in journalism and academic writing.
• Usage is more common in the US.

Synonyms

• effectual, impactive, consequential, significant, eventful

Antonyms

• impactless

Derived terms

• impactfully
• impactfulness

Translations

References

• impactful at OneLook Dictionary Search
• impactful, having impact, impactive at Google Ngram Viewer

English

Alternative forms

• Ø (linguistics, abbreviation)
• ? (mathematics, abbreviation)

Etymology

Borrowed from Middle French nul, from Latin n?llus.

Pronunciation

• (UK, US) IPA^(key): /n?l/
• Rhymes: -?l

Noun

null (plural nulls)

1. A non-existent or empty value or set of values.
2. Zero quantity of expressions; nothing.
3. Something that has no force or meaning.
4. (computing) the ASCII or Unicode character (?), represented by a zero value, that indicates no character and is sometimes used as a string terminator.
5. (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.

6. One of the beads in nulled work.
7. (statistics) Null hypothesis.

Translations

Adjective

null (comparative more null, superlative most null)

1. Having no validity; "null and void"
2. 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.

3. Absent or non-existent.
4. (mathematics) Of the null set.
5. (mathematics) Of or comprising a value of precisely zero.
6. (genetics, of a mutation) Causing a complete loss of gene function, amorphic.

Antonyms

• antinull
• non-null

Derived terms

• null determiner
• nullary
• nullity

Verb

null (third-person singular simple present nulls, present participle nulling, simple past and past participle nulled)

1. (transitive, archaic) To nullify; to annul.
2. To form nulls, or into nulls, as in a lathe.
3. (computing, slang, transitive) To crack; to remove restrictions or limitations in (software).

Related terms

• annul
• nulled work

See also

• nil

Cimbrian

Etymology

From Latin n?llus (“none”).

Numeral

null

1. (Luserna) zero

References

• “null” in Patuzzi, Umberto, ed., (2013) Ünsarne Börtar [Our Words], Luserna, Italy: Comitato unitario delle isole linguistiche storiche germaniche in Italia / Einheitskomitee der historischen deutschen Sprachinseln in Italien

Estonian

Numeral

null

1. zero

Faroese

Etymology

From Latin nullus.

Pronunciation

• IPA^(key): /n?l?/
• Rhymes: -?l?

Numeral

null

1. zero

Noun

null n (genitive singular nuls, plural null)

1. (mathematics) the numeric symbol that represents the cardinal number zero

Declension

German

Etymology

From the noun Null (“the number zero”), from Italian nulla, from Latin nulla, feminine singular of nullus (“no, none”).

Pronunciation

• IPA^(key): /n?l/

Numeral

null

1. zero; nil; nought; (tennis) love (integer number between -1 and 1, denoting no quantity at all)

2. (colloquial) zero; no

   Synonym: (überhaupt) kein

Coordinate terms

Adjective

null (not comparable)

1. (specialist, law, chiefly predicative) null (having no validity)

Declension

Derived terms

• null und nichtig (also in common use)

Further reading

• “null” in Duden online and “null” in Duden online; cp. “null” in Duden online and “null” in Duden online
• “null” in Digitales Wörterbuch der deutschen Sprache; cp. “Null” in Digitales Wörterbuch der deutschen Sprache

Hunsrik

Pronunciation

• IPA^(key): /nul/

Numeral

null

1. zero

Further reading

• Online Hunsrik Dictionary

Norwegian Bokmål

Etymology

From Latin nullus (“no one, none, no”), from Proto-Italic *ne oinolos, from Proto-Italic *oinos (“one”), from Proto-Indo-European *óynos (“one, single”).

Determiner

null

1. no (determiner: not any)

   ha null penger - to have no money

Numeral

null

1. zero, nought, nil

Noun

null m (definite singular nullen, indefinite plural nuller, definite plural nullene)
null n (definite singular nullet, indefinite plural null or nuller, definite plural nulla or nullene)

1. zero (numeric symbol of zero), nought, nil
2. a nobody or nonentity (derogatory about a person)

Derived terms

• nullstille
• nulltoleranse
• nullvekst

References

• “null” in The Bokmål Dictionary.

Norwegian Nynorsk

Etymology

From Latin nullus

Determiner

null

1. no (determiner: not any)

   ha null pengar - to have no money

Numeral

null

1. zero, nought, nil

Noun

null m (definite singular nullen, indefinite plural nullar, definite plural nullane)
null n (definite singular nullet, indefinite plural null, definite plural nulla)

1. zero (numeric symbol of zero), nought, nil
2. a nobody or nonentity (derogatory about a person)

Derived terms

• nulltoleranse
• nullvekst

References

• “null” in The Nynorsk Dictionary.

Pennsylvania German

Etymology

Compare German null.

Numeral

null

1. zero