See you at four-thirty," I told him, and hung up, vaguely unhappy and quite puzzled.
I'm just vaguely unhappy.
She went to bed feeling dissatisfied and vaguely unhappy.
Certainly it's a reaction natural to most of us, but in fact what often happens is that we've given the other party something to brood about; we've made them vaguely unhappy.
He went out of the room, leaving Celine vaguely unhappy.
If Ms. Settle's work was never wildly fashionable - possibly because "I don't write about being vaguely unhappy in Connecticut," she once said - that allowed it to age well.
He was vaguely unhappy.
Athena looks vaguely unhappy, perhaps because the constant playing, which involved using her mouth as a kind of bagpipe, has distorted the shape of her lips.
He resumed his seat, vaguely unhappy that the longed-for respite from the stacks of paper before him would be postponed.
She was vaguely unhappy and uneasy; there was a menace in all the news from England now, both in the letters from her old aunt and in the newspapers.