abortive
adjective
abor·tive ə-ˈbȯr-tiv
Synonyms of abortive
1
obsolete : prematurely born
2
: FRUITLESS, UNSUCCESSFUL
3
: imperfectly formed or developed
4
: tending to cut short
The Snow Cruiser was shipped to Antarctica, but it performed poorly and the expedition itself was cut short due to the US entry into WW2.