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Synonyms

significant

American  
[sig-nif-i-kuhnt] / sɪgˈnɪf ɪ kənt /

adjective

  1. important and deserving of attention; of consequence.

    Their advice played a significant role in saving my marriage.

    Synonyms:
    weighty, momentous, consequential
  2. relatively large in amount or quantity.

    a significant decrease in revenue.

  3. having or expressing a meaning; indicative.

    a significant symbol of royalty.

  4. having a special, secret, or disguised meaning; suggestive.

    a significant wink.

  5. Statistics. of or relating to observations that are unlikely to occur by chance and that therefore indicate a systematic cause.

    Memory training produced a statistically significant improvement in group performance.


noun

  1. something significant; a sign.

significant British  
/ sɪɡˈnɪfɪkənt /

adjective

  1. having or expressing a meaning; indicative

  2. having a covert or implied meaning; suggestive

  3. important, notable, or momentous

  4. 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

"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

Usage

What are other ways to say significant? The adjective significant describes things that are important, indicative of something, or suggestive of a hidden secret meaning. Do you know when to use significant, expressive, meaningful, and suggestive? Find out on Thesaurus.com. 

Other Word Forms

  • nonsignificant adjective
  • significantly adverb
  • supersignificant adjective
  • unsignificant adjective

Etymology

Origin of significant

First recorded in 1565–75; from Latin significant- (stem of significāns ), present participle of the verb significāre “to indicate, denote”; signify, -ant

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The statement concluded that the BBC has made "a significant commitment to improve its culture, processes and standards".

From BBC

Given the year-to-year volatility in monthly returns, April’s advantage over other months is not significant at the 95% confidence level that statisticians often use to assess whether a pattern is genuine.

From MarketWatch

“This is one of the most significant court rulings in recent CA history about oversight,” he said in a message to The Times.

From Los Angeles Times

Even if they prove fairly insulated from a wipeout, they do stand to lose significant business from the whole mess.

From The Wall Street Journal

Even if they prove fairly insulated from a wipeout, they do stand to lose significant business from the whole mess.

From The Wall Street Journal