idée fixe

American  

[ee-dey feeks] / i deɪ ˈfiks /

noun

French.

PLURAL

idées fixes

1. fixed idea.

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idée fixe British  

/ ide fiks /

noun

1. a fixed idea; obsession

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Example Sentences

A fresh start with Russia appears to be as much of an idée fixe for Mr. Trump as outreach to Iran was for his predecessor.

From The Wall Street Journal

At the Group of Seven summit, Trump continued to push his irrational idée fixe that the United States — the richest nation in the world — has been victimized by its friends.

From Washington Post

But it's an instructive observation, because it shows that Serena represents an idée fixe in Sharapova's mind, and she spends at least part of her mental energy inventing rationalizations for the woman who personifies her greatest professional failure.

From Golf Digest

An idée fixe ever since has been that the country “needs” four national wireless carriers.

From The Wall Street Journal

“The sanctions drive against Russia is becoming an idée fixe. We still consider these sanctions illegal... and we’re convinced that any economist can see open attempts to squeeze Russian companies out of global markets,” Peskov told reporters.

From Reuters