seismic

Etymology

Based on Ancient Greek σεισμός (seismós, “shaking, earthquake”) + -ic.

adj

  1. Related to, or caused by an earthquake or other vibration of the Earth.
    seismic activity
  2. (figurative) Of very large or widespread effect.
    With Spurs having avoided a seismic Cup upset, Newport's heroic display will be rewarded with a lucrative replay at Wembley. January 27, 2018, Dafydd Pritchard, “Newport 1 - 1 Tottenham Hotspur”, in BBC Sport
    But the most seismic change is the shift to being supportive of open access. In practice, most of the industry has collectively opposed this for the past 25 years. The Department for Transport has been particularly hostile, seeing it as little more than cherry-picking. February 22 2023, Sir Michael Holden, “Comment: A farewell to micro-management”, in RAIL, number 977, page 3
  3. (of a place) Subject to earthquakes
    a seismic area

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