fizzling

Verb

fizzle (third-person singular simple present fizzles, present participle fizzling, simple past and past participle fizzled)

1. To sputter or hiss.
   • The soda fizzled for several minutes after it was poured.
2. (figuratively, informal) To decay or die off to nothing; to burn out; to end less successfully than previously hoped.
   • The entire project fizzled after the founder quit.
3. To fail to generate the expected yield when exploded during testing.
   • The shot fizzled, generating only 200 tons rather than the 30 kilotons they were aiming for.

See all 7 meanings of fizzle