mind-boggling

adjective

mind-bog·​gling ˈmīn(d)-ˌbä-g(ə-)liŋ 

: mentally or emotionally exciting or overwhelming

mind-bogglingly

ˈmīn(d)-ˌbä-g(ə-)liŋ-lē 

adverb

Synonyms

• breathtaking
• exciting
• interesting
• intriguing
• thrilling

Examples of mind-boggling in a Sentence

a big-box store with a mind-boggling array of home-improvement supplies for the do-it-yourselfer

Recent Examples on the Web

Scheffler’s second-largest comeback win of his career would not have been possible without his mind-boggling chip just short of the 17th green. —Scott Thompson, FOXNews.com, 18 Aug. 2025

That measure alone added $11 billion to Chicago’s pre-existing $36 billion pile of pension debt, a mind-boggling 30% increase. —The Editorial Board, Chicago Tribune, 12 Aug. 2025

In one mind-boggling case in 2022, a Japanese town accidentally wired the entirety of its Covid relief fund – about 46.3 million yen ($322,000) – to just one man’s bank account. —Jessie Yeung, CNN Money, 9 Aug. 2025

The amounts of money being offered to hire AI geniuses is mind-boggling, as tech giants like Meta, Microsoft, Google and OpenAI fight over a tiny talent pool in their race to achieve the next breakthrough. —Jason Ma, Fortune, 9 Aug. 2025

Word History

First Known Use

1955, in the meaning defined above