重要な同義語：230の類義語と対義語 | メリアム・ウェブスター類語辞典

SIGNIFICANT Synonyms: 230 Similar and Opposite Words | Merriam-Webster Thesaurus Est. 1828 Thesaurus Synonyms of significant as in major as in indicative as in influential as in considerable as in suggestive as in major as in indicative as in influential as in considerable as in suggestive Example Sentences Phrases Containing Entries Near Cite this Entry Citation More from M-W Show more Show more Citation More from M-W Save Word To save this word, you'll need to log in. Log In significant adjective sig-ˈni-fi-kənt Definition of significant 1 as in major having great meaning or lasting effect made a significant change in the procedure for applying for citizenship Synonyms & Similar Words Relevance major important historic big substantial much meaningful monumental tectonic exceptional momentous remarkable distinguished pivotal consequential eventful notable noteworthy outstanding decisive serious earthshaking earth - shattering prominent distinctive weighty material strategic great crucial worthy valuable seminal impressive fatal worthwhile key fateful critical famous sincere earnest prestigious eminent essential grave central illustrious notorious heavy vital all - important renowned noble preeminent Antonyms & Near Antonyms small minor little insignificant slight negligible trivial unimportant inconsiderable inconsequential trifling worthless petty paltry unknown obscure anonymous nameless uncelebrated See More 2 as in indicative indicating something the town's generous library budget is significant of the value its residents place on learning Synonyms & Similar Words indicative reflective telltale characteristic signifying denotative symbolic denoting symptomatic referring allusive expressive demonstrative alluding exhibiting suggestive implying hinting insinuating connoting 3 as in influential having great power or influence a producer who is playing a significant role in the creation of the new film Synonyms & Similar Words influential powerful important strong prominent potent mighty senior heavy notable outstanding great distinguished top heavy - duty celebrated capable able noteworthy effective dominant high - level puissant famous efficient competent renowned notorious prestigious robust eminent dynamic illustrious vigorous famed authoritarian despotic energetic noble autocratic tyrannical forceful dictatorial magisterial preeminent high - powered Antonyms & Near Antonyms little insignificant unimportant weak powerless helpless impotent feeble unknown flimsy obscure infirm frail anonymous incapable ineffective nameless incompetent unfit unqualified unskilled uncelebrated inept inexpert unskillful See More 4 as in considerable sufficiently large in size, amount, or number to merit attention paid a significant amount of money for the movie rights to the book Synonyms & Similar Words considerable substantial sizable major tremendous huge good substantive big great respectable handsome massive healthy goodly tidy largish biggish enormous hefty colossal voluminous immense gigantic bulky monumental oversize prodigious outsize astronomical mammoth whopping monstrous titanic herculean jumbo hulking elephantine bumper king - size Antonyms & Near Antonyms insignificant negligible nominal inconsiderable inconsequential trivial unimportant insubstantial marginal slight trifling petty small puny meager paltry minute little tiny piddling measly picayune undersized diminutive pocket smallish miniature picayunish bitty pocket - size pygmy pint - size See More 5 as in suggestive clearly conveying a special meaning (as one's mood) after remarking that tardiness was on the rise, our boss cast a significant glance my way Synonyms & Similar Words suggestive meaningful revealing eloquent expressive meaning reminiscent revelatory pregnant vivid graphic pictorial evocative rich redolent flavorful weighty sententious full - bodied Antonyms & Near Antonyms blank vacant deadpan inexpressive expresionless unexpressive Example Sentences 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 . Recent Examples of significant The prevalence of sports betting has led to more concerns that betting is addictive in ways that pose significant harms. — Michael McCann, Sportico.com , 27 Apr. 2026 For declines to be significant , though, bond yields must remain under 4%. — Tim Maxwell, CBS News , 27 Apr. 2026 But wireless versions can consume significant power over time, creating limits around battery life, maintenance, and practicality. — Neetika Walter, Interesting Engineering , 27 Apr. 2026 In Ryan’s assessment, even these numbers are significant and reflect real and potential opportunities for executive influence on the policy process. — Encyclopedia Britannica , 27 Apr. 2026 See All Example Sentences for significant Recent Examples of Synonyms for significant major indicative influential considerable suggestive important reflective powerful Adjective Jayson Tatum also suffered an apparent calf injury, which is a major concern for a player just under a year removed from an Achilles injury. — Dan Santaromita, New York Times , 1 May 2026 In dozens of markets, including San Diego and Sacramento, Nexstar would own multiple major TV network affiliates. — Meg James, Los Angeles Times , 1 May 2026 Definition of major Adjective This shift—from novelty to acculturation—was, for Nadar, indicative of a transformation of historical experience initiated by a period of unparalleled technological change. — Literary Hub, Literary Hub , 27 Apr. 2026 Past performance is not indicative of future results. — USA TODAY, USA Today , 27 Apr. 2026 Definition of indicative Adjective Over the past five weeks, Rubio, Sessions and influential GOP lobbyist Brian Ballard testified at the foreign-agent trial. — Miami Herald, Miami Herald , 30 Apr. 2026 The movie took in $248M global and became one of the most successful and influential horror movies ever. — Andreas Wiseman, Deadline , 30 Apr. 2026 Definition of influential Adjective As one example, Servais pointed to a new pop-up fair in Brussels called Parloir that generated considerable buzz for its inaugural edition in the Belgian capital this year, held in an unused office building currently under construction. — Devorah Lauter, ARTnews.com , 26 Apr. 2026 Gabi Tuschak and her crew had already raised considerable sums of money. — Jonathan Bullington, Chicago Tribune , 26 Apr. 2026 Definition of considerable Adjective Proofs are littered with suggestive ellipses. — Quanta Magazine, Quanta Magazine , 29 Apr. 2026 Researchers also found highly suggestive evidence that eating more ultraprocessed foods raised the risk of obesity by 55%, sleep disorders by 41%, development of type 2 diabetes by 40% and the risk of depression by 20%. — Sandee LaMotte, CNN Money , 29 Apr. 2026 Definition of suggestive Adjective Later, Mercury in Aries aligns with Chiron, opening the door for honest conversations that can repair something important . — Tarot.com, New York Daily News , 1 May 2026 Sleep stages differ in important ways, Monika Schönauer, a sleep researcher at the University of Freiburg, who wasn’t involved in the study, told me. — Shayla Love, New Yorker , 1 May 2026 Definition of important Adjective The youngins also want a yacht that is design-forward and reflective of their taste. — Rachel Cormack, Robb Report , 2 May 2026 The move feels reflective of the state of things. — Max Goldbart, Deadline , 1 May 2026 Definition of reflective Adjective In its system card for Claude Mythos, for instance, Anthropicresearchers noted that the powerful AI exhibited a strange fondness for the British cultural theorist Mark Fisher. — Frank Landymore, Futurism , 30 Apr. 2026 To fix that, Fever removed it and replaced it with a motor from a powerful electric dirt bike. — Mack DeGeurin, Popular Science , 30 Apr. 2026 Definition of powerful Phrases Containing significant significant other Browse Nearby Words significances significant significantly See all Nearby Words Cite this Entry Style MLA Chicago APA Merriam-Webster “Significant.” Merriam-Webster.com Thesaurus , Merriam-Webster, https://www.merriam-webster.com/thesaurus/significant. Accessed 4 May. 2026. Copy Citation More from Merriam-Webster on significant Nglish: Translation of significant for Spanish Speakers Last Updated: 3 May 2026 - Updated example sentences Love words? Need even more definitions? Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Merriam-Webster unabridged More from Merriam-Webster Word of the Day scrupulous See Definitions and Examples » Get Word of the Day daily email! Popular in Grammar & Usage See More More Commonly Mispronounced Words 5 Verbal Slip Ups and Language Mistakes Is that lie 'bald-faced' or 'bold-faced'? The Difference Between 'i.e.' and 'e.g.' Why is '-ed' sometimes pronounced at the end of a word? See More Popular in Wordplay See More The Longest Long Words List 9 Other Words for Beautiful The Words of the Week - May 1 Was 'nervous Nellie' a Real Person? 12 Lovely and Unusual Words for the Natural World See More Popular See More More Commonly Mispronounced Words The Longest Long Words List 9 Other Words for Beautiful See More Games & Quizzes See All Quordle Can you solve 4 words at once? Play Blossom Pick the best words! Play The Missing Letter A daily crossword with a twist Play Name That Tree! A quiz that’s all bark, no bite. Take the quiz See All