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sky-high

American  
[skahy-hahy] / ˈskaɪˈhaɪ /

adverb

  1. very high.

    Costs have gone sky-high since the war.


sky-high British  

adjective

  1. at or to an unprecedented or excessive level

    prices rocketed sky-high

"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

adverb

  1. high into the air

  2. to destroy completely

"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

Etymology

Origin of sky-high

First recorded in 1810–20

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.

“There are no gatekeepers, which means the ceiling is sky-high and the floor is as low as it gets; I’ve seen genuinely mind-blowing shows at Fringe, as well as a whole lot of crap.”

From Los Angeles Times • Jun. 10, 2026

Airline executives descend on Rio this weekend to weigh the prospects for an industry grappling with geopolitical turbulence, soaring fuel costs and travellers wary of chasing sky-high ticket prices.

From Barron's • Jun. 6, 2026

The Knicks don’t have to count on historical precedent or their supporters’ sky-high spirits to carry them through, though.

From The Wall Street Journal • Jun. 6, 2026

SpaceX’s sky-high market valuation — $1.75 trillion at a proposed $135-a-share price — makes it extremely unlikely its stock will be able to even keep up with the S&P 500 in coming years.

From MarketWatch • Jun. 4, 2026

“My last bottle, and prices are sky-high at the moment. Still, it might be reusable.”

From "Harry Potter and the Half-Blood Prince" by J.K. Rowling

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