"total misconception" is correct and can be used in written English.
It is generally used to describe an idea or belief that is completely wrong. For example, "It was a total misconception that eating ice cream would help cure my cold."
"That was obviously a total misconception".
There's this total misconception about what Islington is like".
This is a tall order for any small painting, and it rests on a total misconception.
Mr. Yuen is adamant in defending Gemstar's accounting, calling the concerns "a total misconception".
In his essay on Frost, Brodsky considered what the term "American" means when applied to poetry, and how it related to "a nearly total misconception of what Frost was all about".
The problem right now is that many companies seem to be operating under the total misconception that growth fixes all.
The problem was that it wasn't even close to true and relied on a number of total misconceptions about email, software and copyright law.
A trend toward significance was found in the correlation between baseline depression ratings and total therapeutic misconception score.
The total number of students' misconceptions increased by 260 following instruction, from 4,812 pre-instruction misconceptions to 5,072 post-instruction misconceptions.
For sufferers and those who care for them, this misconception is a total pain.
Populations in Victoria and South Australia appear to be abundant; however, the Australian Koala Foundation argues that the exclusion of Victorian populations from protective measures is based on a misconception that the total koala population is 200,000, whereas they believe it is probably less than 100,000.
