Which preposition to use with skeptical

of Occurrences 10%

To be entirely frank in stating my views in regard to Mr. Wilson's attitude toward international arbitration and its importance in a plan of world organization, I have always been and still am skeptical of the sincerity of the apparent willingness of the President to accept the change which was inserted in his revised draft.

as Occurrences 9%

Throughout the middle ages, however, many continued to look askance at poetry, and were skeptical as to its value.

about Occurrences 6%

For while not exactly skeptical about Grandison's perfervid loyalty, Dick had been a somewhat keen observer of human nature, in his own indolent way, and based his expectations upon the force of the example and argument that his servant could scarcely fail to encounter.

on Occurrences 2%

A lady of the party was skeptical on the subject, dwelling especially upon the impossibility of any person swallowing a reptile unawares.

in Occurrences 1%

He was altogether skeptical in regard to the rumors.

than Occurrences 1%

His features, though irregular, were not ugly or insignificant, but he wore a rather battered aspect; there were deep lines running from the corners of his mouth, and crowsfeet had started under the gray eyes which, in their turn, looked more skeptical than ardent, rather mocking than eager.

to Occurrences 1%

But he had ceased to oppose the project, except by comments skeptical to a degree.

with Occurrences 1%

He defends immortality in spite of theoretical difficulties, because of its practical necessity; his attitude toward the freedom of the will, which he had energetically defended in the beginning, grows constantly more skeptical with increasing age.

Which preposition to use with  skeptical