The phrase "left unaware" is grammatically correct and can be used in written English.
It is usually used to describe a situation where someone is not informed or made aware of something. Example: Despite the teacher's efforts, some students were left unaware of the assignment due to a technical issue with the online platform.
Older people can be left unaware that they are taking risks with their sexual health.
The NRA president, Wayne LaPierre, made sure nobody left unaware of the challenges.
"These aren't high street jobs – doctor, dentist, teacher etc – and people, including parents and teachers who have so much influence over young people's career choices, are often left unaware of what these careers actually entail.
Haslam denied that NOF board members were left unaware before publication of the findings of the report, which was called Eat Fat, Cut The Carbs and Avoid Snacking To Reverse Obesity and Type 2 Diabetes.
The examples she cites – patients dying in dreadful pain, denied their right to end their days at home, with relatives left unaware of what is happening and unable to say goodbye – are hard to read, difficult to comprehend and will generate fear and anger among the living.
In the first instance, it appears that people overseeing the program were too cautious, so that top managers were left unaware of its existence; in the second, managers may have relied too much on rigid procedures at the expense of basic journalistic principles.
The two million people who visit the museum each year spend an hour or so among the exhibits and then leave, unaware that they have seen just one of 33 buildings that make up the sprawling but largely forgotten Ellis Island complex.
In an outspoken interview with the Observer, Rafał Trzaskowski, Poland's secretary of state for European affairs, who met David Cameron 10 days ago in Warsaw, says that if political leaders do not tell the people of the UK the facts in advance of the planned in/out referendum, many will vote to leave, unaware of the devastating consequences.
We have left you unaware of your worth to us.
Wilshaw said the schools' management left pupils unaware of the risks of extremism and cut off from wider society.
And in a way that left Arden unaware that she'd been found out, so that she would not avoid his family or feel awkward in their presence.
