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eye-opening

American  
[ahy-oh-puh-ning] / ˈaɪˌoʊ pə nɪŋ /

adjective

  1. serving as an eyeopener; enlightening.

    an eye-opening investigation of government corruption.

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.