1. They have only a vague idea of the amount of water available.
2. She had married a charming but rather vague Englishman.
3. He looked at her vague shape through the frosted glass.
4. He was vague, however, about just what U.S. forces might actually do.
5. The bus was a vague shape in the distance.
6. The ideas seem sketchily developed, the textures thin, the images vague.