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significant

significant

92 4.9
A result not likely from chance that shows a real effect
  • adjective
  • /sɪɡˈnɪfɪkənt/
  • Specialized
translation icon : significativo
  • And this time now we are looking at a significant difference.
  • statistically significant
  • significant differences
  • significant effect

And there was a significant but weaker effect on behavior.

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Examples

  • Only the older group demonstrated a statistically significant relationship between the story measures.

    Academic text (2011)
  • The difference in grade point average was not significant over the same period of time.

    Academic text (2011)
  • Will that lead to significant growth this year?

  • China and the UK are both major countries with significant influence.

  • Compared to day 1 values, there were no significant differences over time for the control group.

    Academic text (2011)
  • Only information acquired from the Internet had a significant positive effect on developer knowledge.

    Academic text (2011)
  • There's been a small but significant change in his DNA.

  • And we saw, for the first time, the appearance of a statistically significant number of extremely hot days in the lower right.

  • Responses to these questions did not demonstrate any statistically significant differences between the two groups.

    Academic text (1999)
  • The researchers reported a significant correlation between exercise and improved mental health.

Synonyms

important
vssignificant
1.0

A person or thing that matters a lot

is used for effects shown as unlikely to arise from random chance
major
vssignificant
1.0

Very serious or important

is a technical judgment about statistical probability rather than size
meaningful
vssignificant
327 3.3

Something that has a clear purpose or that is important

focuses on statistical evidence of a real relationship rather than purpose
nonnegligible
vssignificant
7.2

Large enough to be important and need attention

is about a measured effect unlikely to be due to chance

Antonyms

104 4.1

Not important or too small to matter

Compounds

A person you have a long romantic relationship with and often live with

A large effect that causes an important change

significant figure
  • Specialized
1 4.9

A digit that shows how exact a number is and begins with the first digit that is not zero

significant digit
  • Specialized
1 5.6

A digit that shows how exact a number is, from the first non-zero to final zeros that show accuracy

A big step forward in one area of work or study

A large amount of attention and worry from many people about an event or issue

How Significant

major
1.0
substantial
7 5.0
significant
  • Specialized
92 4.9
noticeable
65 3.2
minor
600 2.4
insignificant
104 4.1

Surface Forms

significant positive
significantly positive

Morphology

significant = signify (semi-transparent) = sign + fic + ant

Formally derived from 'signify', but the statistical meaning ('not due to chance') is a technical extension that learners may not infer from the base verb alone.

Etymology

Significant comes from the Latin significare, 'to show a sign', with sign meaning 'mark' or 'signal'. In science or statistics, a significant result is one that gives a clear 'sign' that the effect is real and not just by chance.