misguided
1. [ adjective ] poorly conceived or thought out
Synonyms: ill-conceived
Examples:

"an ill-conceived plan to take over the company"

Related terms: foolish
2. [ adjective ] poorly conceived or thought out
Synonyms: ill-conceived
Examples:

"an ill-conceived plan to take over the company"

Related terms: foolish
3. [ adjective ] wrong in e.g. opinion or judgment
Synonyms: mistaken
Examples:

"well-meaning but misguided teachers" "a mistaken belief" "mistaken identity"

Related terms: wrong