重要な定義と意味 - メリアム・ウェブスター

SIGNIFICANT Definition & Meaning - Merriam-Webster Est. 1828 Dictionary Definition Definition Synonyms Example Sentences Word History Phrases Containing Rhymes Entries Near Cite this Entry Citation Kids Definition Kids Medical Definition Medical More from M-W Show more Show more Citation Kids Medical More from M-W Save Word To save this word, you'll need to log in. Log In significant adjective sig·​nif·​i·​cant sig-ˈni-fi-kənt Synonyms of significant Take our 3 question quiz on significant Simple Definition A Simple Definition is available from our Learner's Dictionary to help you understand the meaning faster. 1 : having meaning … collected every stamp that included a map of any significant detail. — Gayle Turim especially : full of import : suggestive a significant glance It is significant that she never mentioned him. Take our 3 question quiz on significant 2 a : having or likely to have influence or effect : important a significant piece of legislation a significant event in the history of our nation also : large enough to be noticed or to have an effect a significant number of layoffs producing significant profits b : likely caused by something other than mere chance statistically significant correlation between vitamin deficiency and disease Synonyms of significant Relevance major important historic big substantial See All Synonyms & Antonyms in Thesaurus Examples of significant in a Sentence Historians of ancient gender have seen this as crucially significant . Women in antiquity were by definition so disempowered that the authority of a new female ruler could only be captured by representing her in the guise of a man. Or so the argument goes. — Mary Beard , New York Review of Books , 12 Feb. 2009 While Congress will take a significant role in designing new regulation and is not likely to rubber-stamp the administration's proposals, momentum is strong for the creation of comprehensive financial reform. — Marc I. Seltzer et al. , Commonweal , 19 June 2009 A new study on women and the media from the University of Missouri-Columbia shows that overweight women and women with eating disorders are not the only ones negatively affected by unrealistic advertisements (as previous studies have indicated). After viewing images of models, women of all sizes reported a significant decrease in satisfaction with their weight, hair, physical shape and sexual attractiveness. — Ms . , Summer 2007 One of [Charles] Darwin's most extraordinary qualities was his ability to recognize when a scientific question could not be answered because of the limitations of the science of his day. He knew, for instance, that during his lifetime, no significant progress would be made on the question of how life began. — Amy Stewart , Wilson Quarterly , Winter 2004 A significant number of customers complained about the service. He won a significant amount of money. There is a significant difference in prices between the two stores. The study found a statistically significant decrease in symptoms in patients who had taken the drug. a significant event in the history of our nation Fish is a significant part of their diet. It is significant that she never mentioned him. He gave us a significant wink. See More Recent Examples on the Web Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback . Issue One, an advocacy group tracking redistricting nationwide, said changing maps for 2026 could be difficult because many states have already held primaries and legal challenges would place significant obstacles before the general election. — Bart Jansen, USA Today , 30 Apr. 2026 Rain sensors override automatic controllers after significant rainfall. — Steve Bender, Southern Living , 29 Apr. 2026 The Heat’s current preference to preserve significant 2027 cap space isn’t being made entirely based on the hope that one of the top potential free agents will opt for free agency in 2027. — Barry Jackson, Miami Herald , 29 Apr. 2026 Sabah holds 60% of Malaysia’s mangroves, offering significant potential for blue carbon credit generation. — Angelica Ang, Fortune , 29 Apr. 2026 See All Example Sentences for significant Word History Etymology Latin significant-, significans , present participle of significare to signify First Known Use 1566, in the meaning defined at sense 1 Time Traveler The first known use of significant was in 1566 See more words from the same year Phrases Containing significant significant digit significant other Rhymes for significant insignificant nonsignificant See All Rhymes for significant Browse Nearby Words significancy significant significant digit See all Nearby Words Cite this Entry Style MLA Chicago APA Merriam-Webster “Significant.” Merriam-Webster.com Dictionary , Merriam-Webster, https://www.merriam-webster.com/dictionary/significant. Accessed 30 Apr. 2026. Copy Citation Kids Definition significant adjective sig·​nif·​i·​cant sig-ˈnif-i-kənt 1 : having much importance 2 : probably caused by something other than chance a statistically significant relationship between vitamin deficiency and disease 3 : having meaning and especially a hidden or special meaning gave us a significant wink significantly adverb Etymology from Latin significant-, significans, present participle of significare "to signify, indicate," from signum "mark, sign, image" — related to sign Medical Definition significant adjective sig·​nif·​i·​cant sig-ˈnif-i-kənt : probably caused by something other than mere chance a statistically significant correlation between diet and disease significantly adverb More from Merriam-Webster on significant Nglish: Translation of significant for Spanish Speakers Last Updated: 30 Apr 2026 - Updated example sentences Love words? Need even more definitions? 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