dubious

"I don't know exactly," replied the doctor in a dubious tone.

"Why—I've never worn a low dress—not really low," I said, longing but dubious.

Better that he had been still silent, than speak that dubious, indecisive "Y—es."

Mr. Cruncher was soothed, but shook his head in a dubious and moral way.

They liked him, but they were dubious of his right to represent the Tory spirit.

At first Ben Aboo seemed likely to lose by his dubious transaction.

"Why, I'd be glad to, of course," he declared with dubious enthusiasm.

From the doorway Creede watched him curiously, his lips parted in a dubious smile.

Of that dubious crew of adventurers she had been led to expect there was never a hint.

“Sure,” I replied, hurriedly, with no intention of explaining that dubious they.