Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Within moments the six-mile-wide chunk of rock, known as the Chicxulub impactor, caused tsunamis so large that the Great Plains were overwhelmed with water.
Source: https://www.discovermagazine.com/the-sciences/the-asteroids-we-should-watch-out-for