under the illusion
idiom
: having a mistaken belief about something
He was under the illusion that he was a good player.
Examples of under the illusion in a Sentence
Recent Examples on the Web
Anyone still laboring under the illusion that this is a populist administration needs to understand that ‘for the people’ means ‘only some of the people,’ usually the millionaires and billionaires.
—
Tom Zirpoli, Baltimore Sun, 8 July 2025
Yet many leaders operate under the illusion that their opinions automatically matter simply because of their title.
—Cheryl Robinson, Forbes.com, 3 July 2025
For decades, leadership operated under the illusion that the world moved in straight lines.
—Kevin Kruse, Forbes, 3 Mar. 2025
At this point, no one is under the illusion that this is going to be a fun night.
—Bill Wyman, Vulture, 28 Feb. 2025
Compulsive bettors often operate under the illusion of control, thinking that in sports betting, compared to a game of chance like slot machines, their expertise will give them an upper hand.
—Stephen J. Nesbitt, The Athletic, 17 Apr. 2024
But many voters who are sitting out or voting third party aren’t under the illusion that Trump is in any way a better alternative for Palestinians.
—Abdallah Fayyad, Vox, 7 Dec. 2018
Amazingly the Biden-Harris Administration encouraged London to go for such an agreement under the illusion that this would preserve the base.
—Steve Forbes, Forbes, 10 Oct. 2024
Few of the advisers on the ground in Iraq, however, were under the illusion that the assessments captured the true state of the Iraqi forces.
—Rachel Tecott, Foreign Affairs, 26 Aug. 2021
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Tom Zirpoli, Baltimore Sun, 8 July 2025
Yet many leaders operate under the illusion that their opinions automatically matter simply because of their title.
—Cheryl Robinson, Forbes.com, 3 July 2025
For decades, leadership operated under the illusion that the world moved in straight lines.
—Kevin Kruse, Forbes, 3 Mar. 2025
At this point, no one is under the illusion that this is going to be a fun night.
—Bill Wyman, Vulture, 28 Feb. 2025
Compulsive bettors often operate under the illusion of control, thinking that in sports betting, compared to a game of chance like slot machines, their expertise will give them an upper hand.
—Stephen J. Nesbitt, The Athletic, 17 Apr. 2024
But many voters who are sitting out or voting third party aren’t under the illusion that Trump is in any way a better alternative for Palestinians.
—Abdallah Fayyad, Vox, 7 Dec. 2018
Amazingly the Biden-Harris Administration encouraged London to go for such an agreement under the illusion that this would preserve the base.
—Steve Forbes, Forbes, 10 Oct. 2024
Few of the advisers on the ground in Iraq, however, were under the illusion that the assessments captured the true state of the Iraqi forces.
—Rachel Tecott, Foreign Affairs, 26 Aug. 2021
Cite this Entry
“Under the illusion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/under%20the%20illusion. Accessed 19 Jul. 2025.
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