The phrase "much of an idea" is correct and can be used in written English. It is typically used to express skepticism or disbelief about something, usually an idea or suggestion. For example, "I don't think that's much of an idea."
When I started I didn't have much of an idea of what most of that meant.
Then again, no one has much of an idea what a self-help book is.
You start off in life, she says, with not much of an idea.
But we never get much of an idea what he is like inside, or what demons drive him.
If "twisty switchbacks" are the only idea behind a shoot, it's not much of an idea, Mr. Moore said.
6.11pm BST It doesn't seem like Reynolds has much of an idea of how to break Djokovic down.
And trust me when I say it hurts me more than it hurts you, because I have never been much of an ideas person.
It's not that much of a stupid idea.
"I haven't read the statistic [about Bale]because it doesn't give me much of a great idea of how the game was.
Much of this idea of a boycott has come from the same crowd that held Xi up as the poster boy of global trade at the 2017 World Economic Forum.
So, JobScout may not be as much of a me-too idea as one might initially suspect.
Thanks to Ludwig my first paper got accepted! The editor wrote me that my manuscript was well-written
Listya Utami K.
PhD Student in Biology, Bandung Institute of Technology, Indonesia