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  • rock bottom
    rock bottom
    noun
    the very lowest level.
  • rock-bottom
    rock-bottom
    adjective
    at the lowest possible limit or level; extremely low.
Synonyms

rock bottom

1 American  

noun

  1. the very lowest level.

    He went bankrupt and touched rock bottom.


rock-bottom 2 American  
[rok-bot-uhm] / ˈrɒkˈbɒt əm /

adjective

  1. at the lowest possible limit or level; extremely low.

    rock-bottom prices.


rock bottom British  

noun

    1. the lowest possible level

    2. ( as modifier )

      rock-bottom prices

"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

rock bottom Idioms  
  1. The lowest possible level, absolute bottom, as in Wheat prices have reached rock bottom. This idiom alludes to the presence of bedrock that prevents digging farther down. [Late 1800s]


Etymology

Origin of rock bottom1

An Americanism dating back to 1865–70

Origin of rock-bottom2

First recorded in 1880–85

Explanation

Use the adjective rock-bottom to describe something that can't be any lower, especially a price. If a store is selling TVs at rock-bottom prices, you probably can't find one any cheaper. You'll almost always find this word describing the low price tag of something that's on sale or that has a very low cost. The rock-bottom prices for books can usually be found online or in a used book store or yard sale, rather than at a new book store. And you'll get rock-bottom prices on groceries if you clip coupons and buy store brands. Rock-bottom was coined sometime in the late nineteenth century.

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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.

Mother Mary, then, has just reached her rock bottom, with Sam’s good graces barely cushioning her fall.

From Salon • Apr. 24, 2026

Volumes in the freight industry haven’t recovered yet, but the economics of delivery might just have hit rock bottom, with major shippers turning away volume.

From Barron's • Mar. 18, 2026

"I think it's within everyone to hit rock bottom and to find themselves in a big hole like that," said Williams, when filming finished.

From BBC • Mar. 10, 2026

When he woke up outside on a stranger’s futon with no money to his name, he knew he’d hit rock bottom.

From Slate • Feb. 2, 2026

Whenever we hit rock bottom, Elisabet somehow discovers a little cash in her purse.

From "The Poisonwood Bible" by Barbara Kingsolver

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