Meanings of less dim in English

The light of the moon became less dim, and I raised my eyes.

We emerged into a less dim area.

He still spoke haltingly, but his eyes looked less dim than they had done a moment ago.

At first he said nothing and lay still, but his eyes became less dim and his sulky lips moved.

It was well that it should so appear, for not less dim and misty are the memories that haunt its walls.

It was the old still-room, but it had been long in disuse, and was scarcely less dim than the passages which led to it.

The hills that rose abruptly on either hand, and the thick intertwining branches above, combined to produce a dusky aspect scarce less dim than twilight.