Words similar to doubtful

Example sentences for: doubtful

How can you use “doubtful” in a sentence? Here are some example sentences to help you improve your vocabulary:

In this particular case, it is doubtful that anyone reading The Times is unaware of the meaning of American ass . Another alternative, not always possible, is to avoid entirely the passage containing the problem word or phrase.
That vowel would not yield the first vowel of gunsel, hence a Yiddish origin for it is doubtful.
Of course, the biggest problem with books of this sort is that the most they can expect to accomplish is to help people refine their use of the language: those whom we think of as needing the greatest amount of help are usually unaware of the fact; for them, looking up a doubtful usage in a book like Hook's (or anyone else's, or even a dictionary) would be unthinkable.
It's not clear when the fetus can perceive, but it is doubtful that it can before 22 weeks.
In Australia, where the subject is particularly sensitive because of the doubtful means by which Sydney won the right to host the 2000 Olympic Games, the Sydney Morning Herald and the Age of Melbourne both used editorials to call for full exposure of the truth.