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Synonyms

frightful

American  
[frahyt-fuhl] / ˈfraɪt fəl /

adjective

  1. such as to cause fright; dreadful, terrible, or alarming.

    A frightful howl woke us.

    Synonyms:
    awful, fearful
    Antonyms:
    delightful
  2. horrible, shocking, or revolting.

    The storm did frightful damage.

    Synonyms:
    gruesome, ghastly, horrid, dread, hideous
    Antonyms:
    delightful
  3. Informal. unpleasant; disagreeable.

    We had a frightful time.

  4. Informal. very great; extreme.

    That actor is very talented but a frightful ham.


frightful British  
/ ˈfraɪtfʊl /

adjective

  1. very alarming, distressing, or horrifying

  2. unpleasant, annoying, or extreme

    a frightful hurry

"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

Other Word Forms

  • frightfully adverb
  • frightfulness noun
  • unfrightful adjective

Etymology

Origin of frightful

Middle English word dating back to 1200–50; fright, -ful

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.

“A half day would hardly be enough time to see the sights of London,” Penelope began to protest, but she was interrupted by a frightful noise, which seemed to have its origins rather close by.

From Literature

This is the eighth and final year Enea’s family of four will be remaking its Van Nuys property into a frightful, walk-through attraction that spooks thousands of visitors each Halloween.

From Los Angeles Times

And will we ever sleep well in an area that has not seen the last of wildfires and frightful winds?

From Los Angeles Times

But you don’t have to be obsessed with frightful fare to fit in.

From Los Angeles Times

Even before DOGE, Musk had a frightful habit of posting online, often tweeting 100 times a day.

From Salon