General synonyms:
* Broken
* Cracked
* Shattered
* Smashed
* Ruined
* Destroyed
* Spoiled
* Finished
* Ended
* Stopped
Synonyms implying movement:
* Hurried
* Rushed
* Scampered
* Sped
* Flung
* Threw
* Slung
Figurative synonyms:
* Crushed
* Disappointed
* Defeated
* Hopeful (used ironically)
* Frustrated
More specific synonyms depending on the context:
* Dashed hopes: Crushed, shattered, extinguished.
* Dashed against the rocks: Smashed, broken, wrecked.
* Dashed off a letter: Hurriedly wrote, quickly composed.
To choose the best synonym, consider the specific meaning and tone you want to convey.