inflection point

American  

[in-flek-shuhn point] / ɪnˈflɛk ʃən ˌpɔɪnt /

noun

1. Also called point of inflection.  Also called flex point.  Mathematics. a point on a curve at which the curvature changes from convex to concave or vice versa.

2. a point at which a major or decisive change takes place; critical point.

   We’re at an inflection point where we’ll see the technology move forward at a much faster pace.

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Etymology

Origin of inflection point

First recorded in 1715–25

Example Sentences

It is too soon to say that the biggest war in Europe since World War II has reached an inflection point, many analysts warn.

From The Wall Street Journal • May 19, 2026

“We are at an inflection point with AI, and the choices companies and regulators make now will shape how this technology impacts everyday people,” he said in a statement.

From Los Angeles Times • May 6, 2026

It was in August 2015, at the first Republican presidential debate, that Kelly hit the first big inflection point on her journey.

From Slate • May 6, 2026

Experts say V4's release marks an "inflection point" in terms of hardware and cost.

From Barron's • Apr. 24, 2026

“The Western rare earth sector stands at a critical inflection point, as governments and strategic industries urgently seek reliable sources of critical rare earths — particularly scarce heavy rare earths.”

From MarketWatch • Apr. 20, 2026