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Definitions

sea change

NOUN
major change
Synonyms
WEAK
break with the past conversion marked transformation metamorphosis quantum jump quantum leap radical change revolutionary change sudden change total change transfiguration transformation upheaval

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

That is a sea change, and it’s something I haven’t totally wrapped my mind around yet.

From Slate • Apr. 13, 2026

The startup hadn’t caught Nvidia’s attention for most of its nine-year existence—until last year, when the AI industry underwent a sea change that breathed new life into the chip giant’s competitors.

From The Wall Street Journal • Mar. 24, 2026

It has been a depressing crash course on the sea change in Silicon Valley.

From Los Angeles Times • Mar. 6, 2026

The enthusiastic assessments of both men, which have been echoed by Trump, reflect the sea change in relations between Washington and Caracas since the capture of Maduro.

From Barron's • Mar. 4, 2026

The Great Depression effectuated a sea change in American race relations and party alignment.

From "The New Jim Crow" by Michelle Alexander