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[sig-nif-i-kuh nt] /sɪgˈnɪf ɪ kənt/
important; of consequence.
having or expressing a meaning; indicative; suggestive:
a significant wink.
Statistics. of or relating to observations that are unlikely to occur by chance and that therefore indicate a systematic cause.
something significant; a sign.
1570-80; < Latin significant- (stem of significāns), present participle of significāre to signify; see -ant
Related forms
significantly, adverb
nonsignificant, adjective
nonsignificantly, adverb
supersignificant, adjective
supersignificantly, adverb
unsignificant, adjective
unsignificantly, adverb
1. consequential, momentous, weighty. 2. See expressive. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for significantly
  • The advantages of living in a state park significantly outweigh the disadvantages.
  • But if growth is progressing significantly out of bounds, you may have to dig out the portions that have gone too far.
  • Recycling as much of your household garbage as possible can significantly reduce your contribution to landfills.
  • The vast majority of them will live in urban areas, and will have a significantly higher average age than people today.
  • But your growing season better be significantly longer than that.
  • But it also implies bad news if inflation rises significantly.
  • The sense of touch can be significantly improved using drug therapy, new research suggests.
  • And her voice was significantly better than whoever is singing this version.
  • Studies show that chewing gum after a meal can significantly reduce the severity of heartburn.
  • Legal issues concerning higher education have grown significantly in scope and impact over the past five decades.
British Dictionary definitions for significantly


having or expressing a meaning; indicative
having a covert or implied meaning; suggestive
important, notable, or momentous
(statistics) of or relating to a difference between a result derived from a hypothesis and its observed value that is too large to be attributed to chance and that therefore tends to refute the hypothesis
Derived Forms
significantly, adverb
Word Origin
C16: from Latin significāre to signify
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for significantly



1570s, "having a meaning," from Latin significantem (nominative significans, present participle of significare "make known, indicate" (see signify). Earlier in the same sense was significative (c.1400). Often "having a special or secret meaning," hence "important" (1761). Related: Significantly. Significant figure is from 1680s. Significant other (n.) attested by 1961, in psychology, "the most influential other person in the patient's world."

Online Etymology Dictionary, © 2010 Douglas Harper
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