doubtsome

Well, I got along to me room, sick an 'sorry enough, an' doubtsome whether I might get in wid no key.

Martin Hewitt, Investigator Arthur Morrison 1904

They are oddly careless in the essential matter of dates, but contain many astounding genuine documents, which lend a sort of 'doubtsome trust' to others, hardly more incredible, which cannot be verified, and are supposed by the Duc de Broglie to be 'interpolations.'

Historical Mysteries Andrew Lang 1878

Princes, by fore-telling them manie greate thinges; parte true, parte false: For if all were false, he would tyne credite at all handes; but alwaies doubtsome, as his Oracles were.

Daemonologie. King of England James I 1595

I thank my God that I preach unto you so sure a gospel, even the oracles of the eternal God; the earth and the heavens shall pass away, but this word and oracles shall never pass away; therefore it is not a doubtsome message that I carry unto you, for it is surer than the heavens, and surer than the earth; and these eyes of yours, that have seen both the truth of this spoken here.

The Pulpit Of The Reformation, Nos. 1, 2, 3 and 4. John Welch

"doubtsome faith" which the Popish Church systematically inculcates, are both rebuked here, being in direct and painful contrast to that

Commentary Critical and Explanatory on the Whole Bible 1871