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Synonyms

rocket science

American  

noun

  1. rocketry.

  2. something requiring great intelligence, especially mathematical ability.


rocket science British  

noun

  1. informal an activity requiring considerable intelligence and ability (esp in the phrase not exactly rocket science )

"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

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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.

Chip-making isn’t rocket science, but it might prove to be his biggest challenge yet.

From The Wall Street Journal • Apr. 24, 2026

But recruiting the best players in your own backyard, as Carroll saw it, wasn’t really rocket science.

From Los Angeles Times • Dec. 3, 2025

The basic principle isn’t rocket science: Everything is easier when it’s on a schedule.

From Slate • May 5, 2025

Leading science educator and communicator, Dr. Frederic Bertley, brings rocket science to young White House visitors during the 2023 annual Easter Egg Roll.

From Salon • May 6, 2024

His evidence was mounting and profound; this was something different, this device that captivated the human senses, and, in a way, recognition of the risks required neither science nor proverbial rocket science.

From "A Deadly Wandering: A Mystery, a Landmark Investigation, and the Astonishing Science of Attention in the Digital Age" by Matt Richtel

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