(adj) foolish; totally unsound, Syn. screwball, half-baked, softheaded, Example:a crazy scheme; half-baked ideas; a screwball proposal without a prayer of working
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)
a. 1. Insufficiently or poorly planned or thought out; impractical or unrealistic; as, a half-baked proposal; half-baked ideas; -- of plans, theories, proposals, etc. [ PJC ]