"misguided understanding" is an acceptable phrase to use in written English.
You could use it to describe someone's opinion or interpretation of a situation that is not based on accurate information. For example: "His misguided understanding of the law led to a costly mistake."
The imam said Mr. Payen had a shallow and misguided understanding of Islam.
"They are operating under an outdated and misguided understanding of what trans-health care means".
President-elect Donald Trump's bluster speaks to a deeply misguided understanding of U.S.-China relations.
Trump's bluster speaks to a deeply misguided understanding of Sino-American relations.
Yes, the Clinton administration had, at times, a remarkably vague and misguided understanding of the American national interest.
Most important, for a man who consistently brags about his unfailing instincts, Trump's bluster speaks to a dangerously misguided understanding of Sino-American relations.
American attitudes have been and continue to be anti-migrant and anti-immigrant, thriving on misguided understandings of migration.
I really think this is a misguided attempt, and not understanding that the planet is dominated by microbial organisms.
These are crucial to the understanding of the misguided tenets of the shadow conspiracy as will be seen shortly.
The mouse models have the potential to improve our understanding of how misguided T-cell responses translate into synovial inflammation and the other organ manifestations in RA patients.
(R58: User) Of note is that this respondent maintained that students are misguided by claiming certainty in understanding of their patient's experiences because they have learned about groups of people and assigned them particular characteristics.
