The phrase "more isolated than" is correct and usable in written English.
You can use it to compare two different states of isolation, such as "He felt more isolated than ever before."
"The Poland in the series is isolated – much more isolated than in the communist era.
He seemed even odder and more isolated than usual.
They are "more isolated than widespread," Ms. Campbell testified.
But the slides have left some tiny communities even more isolated than normal.
"Men are even more isolated than women following rape," Bhagwati says.
At 35, men feel more isolated than at any other time in their lives.
A bad marriage can make a person feel more isolated than being single.
It would be hard to make the Hermit Kingdom any more isolated than it already is.
"We are more isolated than at a law firm," said Judge Miriam Goldman Cedarbaum, who befriended her.
That means the islands are more isolated than ever, even as the humanitarian crisis has worsened by the day.
This could, if not handled with care, make Mr Bush's administration look more isolated than Iran and its fellow rejectionists.
