Nonstarter (noun)

Something that will not succeed or be accepted.

Origin:

Non- + starter.

Examples:

1. The proposal was a nonstarter from the beginning.
2. The idea was considered a nonstarter and was quickly discarded.
3. The plan was a nonstarter and never got off the ground.
4. The product was a nonstarter and was discontinued after a short time.
5. The idea was a nonstarter as it lacked support from key stakeholders.