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

The couple said they were under the impression they were being compensated to be actors in a movie.

From Los Angeles Times

Although Carol was under the impression that she had to give the Others consent to harvest the stem cells that they need to concoct an assimilating formula, the genetic material from the eggs she froze before the Joining, which they’ve obtained, is sufficient.

From Salon

The Miami crowd, under the impression they were there to be entertained, hissed and booed.

From The Wall Street Journal

Others were under the impression that this was her way of letting a former lover know that a relationship was over.

From Los Angeles Times

Ms Robinson said they had been under the impression the law had been working to protect families since it was passed.

From BBC