under the impression

Idioms  

1. Thinking, assuming, or believing something, as in I was under the impression that they were coming today. This idiom often suggests that the idea or belief one had is mistaken. [Mid-1800s]

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Example Sentences

See Examples For:

under the impression

At the time, he said, he was under the impression that the community would be consulted if it came up again.

From Los Angeles Times ● Jun. 9, 2026

He seems to think the assignment was to do a sort of Peter Sellers turn, as though under the impression that the project was a broad comedy like last year’s “Fackham Hall.”

From The Wall Street Journal ● May 28, 2026

I was under the impression that a logical qubit had perfect fidelity.

From Barron's ● May 21, 2026

She claimed that she was mistakenly under the impression that her case would then be sent to appeal and noted that she has the documented verbal comprehension of a second-grader.

From Los Angeles Times ● Mar. 31, 2026

“I was under the impression that you were something more, actually,” I confessed, looking at the table.

From "Twilight" by Stephenie Meyer