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 of mind-boggling

• 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

And investors are increasingly nervous about when and whether the mind-boggling sums being spent by Big Tech on data centers will ever generate returns. — Allison Morrow, CNN Money, 23 July 2026

That is even more mind-boggling, considering Willie Mays, Henry Aaron, Mickey Mantle, Stan Musial and Ted Williams all played in that one. — Jayson Stark, New York Times, 15 July 2026

If an ascent vehicle suffers a destructive anomaly, the resulting crash forces could be mind-boggling. — Mrigakshi Dixit, Interesting Engineering, 10 July 2026

There have been a lot of Emmys noms in that time — 1,208, which is a little mind-boggling. — Steven Zeitchik, HollywoodReporter, 8 July 2026

Word History

First Known Use

1955, in the meaning defined above