- earthshaking - loud enough to shake the very earth
Antonym: soft (indirect, via loud)
- earthshaking, world-shaking, world-shattering - sufficiently significant to affect the whole world; "earthshaking proposals"; "the contest was no world-shaking affair"; "the conversation...could hardly be called world-shattering"
Antonyms: insignificant, unimportant (indirect, via significant)