eureka

[yoo-ree-kuh, yuh-] / yʊˈri kə, yə- /

NOUN

surprise

Synonyms

STRONGEST

amazement astonishment awe bewilderment consternation curiosity disappointment jolt miracle revelation shock wonder

STRONG

abruptness attack bombshell disillusion epiphany fortune godsend incredulity kick marvel miscalculation phenomenon portent precipitance precipitation precipitousness prodigy rarity start stupefaction suddenness thunderbolt whammy wonderment

WEAK

astoundment curveball eye-opener unexpected unforeseen

Antonyms

STRONGEST

calmness composure coolness expectation happiness indifference

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.

But she said a "eureka moment" came soon after getting her own bank account, when she went out and bought herself a coffee.

From BBC • May 19, 2026

I think my first eureka moment was when I was traveling in sub-Saharan Africa on the Ivory Coast doing a site visit.

From Barron's • Mar. 5, 2026

The results were no eureka moment for luxury and might lead to caution prevailing among investors, Jefferies analysts wrote in a note to clients.

From The Wall Street Journal • Jan. 28, 2026

"That was the real eureka moment," said Dr. Merghoub.

From Science Daily • Nov. 20, 2025

Hudson leans in, puts his fist underneath his chin, and stares off into the sky like he’s just had the most epic eureka moment and is now ready to remake the world.

From "What If It's Us" by Becky Albertalli and Adam Silvera

eureka

Example Sentences

Related Words