We don't have synonyms for halfbaked yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are half-baked, half baked and half-naked.
(adj) :
Alternative spelling of half-baked. [(figurative, informal, frequently derisive) Incomplete; (of an idea or scheme) not fully planned or carefully considered, ill-conceived, unsound or badly thought-out; (of a person) foolish or having no common sense.]
(adj) :
Alternative spelling of half-baked. [(figurative, informal, frequently derisive) Incomplete; (of an idea or scheme) not fully planned or carefully considered, ill-conceived, unsound or badly thought-out; (of a person) foolish or having no common sense.]