seismic

[sahyz-mik, sahys-] / ˈsaɪz mɪk, ˈsaɪs- /

ADJECTIVE

pertaining to an earthquake or event within the earth's crust

Synonyms

STRONGEST

basaltic tectonic

STRONG

quaky quivering tremorous tremulous vibrational

WEAK

earthshattering groundbreaking profound tumultuous

Antonyms

STRONGEST

ethereal insubstantial subtle vaporous

STRONG

constant fixed motionless placid solid unchanging

WEAK

frivolous inconsequential insignificant superficial trivial

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.

Beijing’s announcement on Saturday that it was investigating Gen. Zhang Youxia, Xi’s highest-ranking military deputy, for alleged misconduct extended a seismic shake-up of the Chinese military leadership that has already unseated dozens of senior commanders.

From The Wall Street Journal

The strength of the seismic signals also allowed the researchers to estimate the module's altitude and determine when it broke apart.

From Science Daily

One year ago, a relatively unknown artificial-intelligence lab owned by a Chinese quantitative hedge fund delivered a seismic shock to U.S. tech investors.

From MarketWatch

He aims to chronicle the people, places and businesses smack in the middle of seismic changes transforming America.

From The Wall Street Journal

In December, the Academy announced the awards ceremony would shift from broadcast to YouTube beginning in 2029, mirroring the seismic shifts happening across live television and broadcast networks.

From The Wall Street Journal