non‧start‧er /ˌnɒnˈstɑːtə $ ˌnɑːnˈstɑːrtər/
noun [countable usually singular] informal an idea, a plan, or a person that has no chance of success:
In its present form the scheme is a non-starter. [TahlilGaran] Dictionary of Contemporary English ▲
nonstarter n. An idea, plan, or project that doesn't work or is obviously no good.
His plan to start a new private school is a nonstarter because he is unable to organize anything. [TahlilGaran] English Idioms Dictionary ▲