mushyheaded

[ muhsh-ee-hed-id, moo sh- ]
/ ˈmʌʃ iˌhɛd ɪd, ˈmʊʃ- /

adjective Informal.

inadequately thought out: mushyheaded ideas.
having vague, unsubstantiated, or unrealistic ideas or opinions: a mushyheaded idealist.

Origin of mushyheaded