The phrase "a hazy concept" is correct and usable in written English.
It can be used to describe an idea or notion that is unclear or not well-defined.
Example: "The theory presented in the lecture was intriguing, but it remained a hazy concept for many students."
Alternatives: "an unclear idea" or "a vague notion".
As an alternative, the government has wheeled out a hazy concept of "collaborative consent".
The Establishment which caused such excitement and indignation 40 years ago was always a hazy concept.
Such a hazy concept can be tackled in many ways, and plenty of artists have done just that.
Frohnmayer, the president from 1994 to 2009, recalled that during his undergraduate days at Harvard, many had a hazy concept of Oregon.
Herbert J. Gans, a professor of sociology at Columbia University, said that as packaged ethnic tourism in Manhattan has become more popular, authenticity has become a hazy concept.
As an alternative, the government has wheeled out a hazy concept of "collaborative consent". All that's clear is it studiously avoids recognizing the actual right to say no to destructive resource projects.
But maybe a noisy, informed debate about who really controls how we eat might do at least as much long-term good as 100,000 marchers pursuing a noble but hazy concept of justice.
"I call it the White Flag Syndrome," he writes, because giving some hazy concept a bunch of capital letters lends it gravitas.
Schools often present feminism as a hazy historical concept revolving around women jumping in front of horses and generally outraging the sensibilities of upper-class gentlemen.
Once consumers are afraid and the science has been obscured, companies slap on a premium for their products based on vague claims about safety or even hazier concepts like "honesty" or "conscience". Primed with fear, potential customers are ready to pay much more than they would for a mainstream brand.
2007 was a bit of a misfire for Oxford; although it was a big year for Apple and Facebook, their tech nominations were red herrings like bacn, an abortive attempt to brand "desired spam," and cloudware, which at the time was (if you'll forgive the expression) too hazy a concept to really get much traction among casual users.
