The phrase "already doubtful" is correct and usable in written English.
It can be used to express a pre-existing uncertainty or skepticism about something before further information or events occur.
Example: "Her explanation was confusing, and I was already doubtful about the project's success."
Alternatives: "previously uncertain" or "initially skeptical".
Wick mistrusts Borne, and Rachel's refusal to give the newcomer up threatens the couple's already doubtful alliance.
His Ryder Cup participation at Gleneagles in September, which was already doubtful, is suddenly in more jeopardy than ever.
In any case, Doubleday was already doubtful about Levin's ambiguous role: What if an interested producer decided on another playwright?
(Since the first Angelico retrospective, in Florence in 1955, new attributions to the artist have come thick and fast, by the standards of art history, incidentally reducing the already doubtful status of the Late Gothic painter Gherardo Starnina, whose putative touchstone "Thebaid," a teeming narrative of a monk's travels to Egypt, now belongs to the young Angelico).
Mark Krikorian, of the Center for Immigration Studies, which seeks to limit immigration, countered that conservative voters, already doubtful about the president's commitment to fiscal austerity, might stay home on Election Day or vote for lawmakers opposed to Mr. Bush's plan.
"This is the only occasion on which I have ever offered more than the standard rate; but I have very great admiration for Mr Yates' work...". and so on, a profession whose sincerity, already doubtful, was made more doubtful still by his misspelling of Yeats's name.
It already looks doubtful that the changes will put an end to cynicism about the electoral process.
It already looks doubtful that Saturday's most definitive of results has really settled anything at all.
Yet, if true, the future of the Arab protest movements, a phenomenon Hague calls "the most important development of the early 21st century", is already looking doubtful.
And, as Nani is already rated doubtful to face Wolves on Saturday after limping off with a groin injury midway through the opening period, Sir Alex Ferguson must have been delighted that two of his back-up wide-men followed up Fletcher's opener - only his second Champions League goal in his 50th appearance in the competition - to seal a comfortable win.
Darren Fletcher hasn't been named in the squad to face the Danes and is already rated doubtful for the September double-heade r - which is news to me and I suspect Darren, given that it wasn't the cut of his thinking when I interviewed him at Manchester United's training ground at Carrington last week.
