Dictionary.com
Thesaurus.com
Synonyms

flummox

American  
[fluhm-uhks] / ˈflʌm əks /

verb (used with object)

Informal.
  1. to bewilder; confound; confuse.


flummox British  
/ ˈflʌməks /

verb

  1. (tr) to perplex or bewilder

"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 flummox

First recorded in 1830–40; origin uncertain

Explanation

Does the word flummox bewilder, confound, dumbfound and generally mystify you? Well, fear no more, because flummox means all of these things! Things that flummox you are probably not that serious, and often pretty amusing and informal: a TV remote or a crossword puzzle, for example, rather than something major like why your boyfriend or girlfriend broke up with you. (Now that's unfathomable.) Get this: linguists are actually mystified as to where the word flummox comes from — they're flummoxed, in other words. It may come from an old English word, flummock, meaning "to make untidy or confuse," but no one is really sure. Now, what could be more suitable?

Keep Reading on Vocabulary.com

Vocabulary lists containing flummox

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.

It has continued to flummox consumers in countries such as Spain and Italy, where "mermelada" and "marmellata" respectively are commonly used for spreads made from other kinds of fruit, such as plums and figs.

From BBC • Apr. 2, 2026

That’s roughly as much as Tesla and, if it happens, will flummox traditional aerospace and defense analysts just like Tesla’s valuation can upset traditional car people.

From Barron's • Dec. 12, 2025

The provision is remarkably straightforward—a far cry from the ambiguous, sloppy, or muddled laws that typically flummox the judiciary.

From Slate • Apr. 16, 2024

It might help a few diligent users but would flummox others and probably be mostly ignored.

From Seattle Times • Nov. 10, 2023

Fern had managed to completely flummox the Establishment.

From "One Crazy Summer" by Rita Williams-Garcia

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "flummox" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com