Because if I know one thing, it cannot be your vague anxiety over a long-ago affair that has brought this about.

Of course he's right but I get a slight, vague anxiety.

Not some idle vague anxiety, but more specific, some reason to be afraid.

Quite clearly the vet had no idea why a policeman wanted to see him, or even a vague anxiety about it.

Yet the thought of walking out onto the bridge filled him with a vague anxiety.

Adam's heart rose to his mouth: the vague anxiety about his father was changed into a great dread.

She drew fresh water and poured it into the coffee maker, all the while battling a vague anxiety.

The vague anxiety he had felt about his future receded.

Nothing for him marred that whole year, except for some vague anxiety about his master.

Such vague anxieties keep the mind sensitive and painful.