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Synonyms

deflate

American  
[dih-fleyt] / dɪˈfleɪt /

verb (used with object)

deflated, deflating
  1. to release the air or gas from (something inflated, as a balloon).

    They deflated the tires slightly to allow the truck to drive under the overpass.

  2. to depress or reduce (a person or a person's ego, hopes, spirits, etc.); puncture; dash.

    Her rebuff thoroughly deflated me.

  3. to reduce (currency, prices, etc.) from an inflated condition; to affect with deflation.


verb (used without object)

deflated, deflating
  1. to become deflated.

deflate British  
/ dɪˈfleɪt /

verb

  1. to collapse or cause to collapse through the release of gas

  2. (tr) to take away the self-esteem or conceit from

  3. economics to cause deflation of (an economy, the money supply, etc)

"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

Etymology

Origin of deflate

1890–95; < Latin dēflātus blown off, away (past participle of dēflāre ), equivalent to dē- de- + fl ( āre ) to blow + -ātus -ate 1

Explanation

To deflate is to let the air out of something. If you deflate the tires on your brother's bike, he won't be able to ride it until he gets them pumped up again. You can deflate anything that's full of air or another gas: an air mattress, an inflatable sled, a helium balloon, or the tires on your car. When something, like a hot air balloon, empties of air, you can also say it deflates. Figuratively, a person can also deflate when they are suddenly drained of self-assurance or cheer: "Hearing him criticize me in front of the class made me deflate."

Keep Reading on Vocabulary.com

Vocabulary lists containing deflate

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.

Deflate your giant Santas and unplug those twinkly holiday lights: The Santa Ana winds are coming to town.

From Los Angeles Times • Dec. 4, 2017

Deflate Foxboro Egos: Message preprinted at the top of Roger Goodell’s daily planner since January 2015.

From Washington Post • Aug. 24, 2017

In his notes, Goldberg gives evidence of the usage in a text message between the two men: "Deflate and give somebody that jacket," McNally texts to Jastremski.

From Los Angeles Times • May 14, 2015

If not for the presence of Bill Belichick, following the twists and turns of The Great Deflate would be as interesting as dissecting the anatomy of a hangnail.

From Seattle Times • Jan. 27, 2015