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

“I was under the impression that FTD was just kind of a fun ‘if you know, you know’ sort of thing,” Hardin said.

From Los Angeles Times ● Jun. 26, 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

But some children were also under the impression that there had been significant organised fighting or even that people had been killed, for which there's no evidence at all.

From BBC ● Mar. 9, 2026

People are under the impression that trees don’t mind being carved into, especially if hearts are involved.

From "Wishtree" by Katherine Applegate