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super-duper

American  
[soo-per-doo-per] / ˈsu pərˈdu pər /

adjective

Informal.

  1. extremely good, powerful, large, etc.; very super; marvelous or colossal.

super-duper British  
/ ˈsuːpəˈduːpə /

adjective

  1. informal extremely pleasing, impressive, etc: often used as an exclamation

"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 super-duper

First recorded in 1935–40; rhyming compound with invented second element

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.

For most of my life—and most of his life—he was never exactly super-duper mega-famous.

From Slate • Dec. 19, 2024

“It was smaller than the front seat of a Volkswagen bug. It made Apollo seem like a super-duper, plush touring bus.”

From Washington Times • Nov. 10, 2023

Thanks to his signature super power — super-duper mind-bending speed — he can truly be in two places at once.

From Seattle Times • Jun. 12, 2023

Point being, it’s a super-duper rich story generator.

From Los Angeles Times • Mar. 24, 2023

Somehow our super-duper plant fell off the windowsill.

From "Because of Mr. Terupt" by Rob Buyea

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.