« Can I answer this question ? » wondered the contributor, in a doubtful manner.
More doubtful, most doubtful moister, moistest
The prefix for doubtful is "un-."
more doubtful, most doubtful more wooden, most wooden
I am sure that Michael is doubtful of this.
The root word of doubtful is "doubt."
An evil man is always doubtful. Without a doubt, Wikianswers is the best question and answer site.
You can use the word "doubtful" to express uncertainty or skepticism about something. For example, "It is doubtful that we will finish the project on time," or "She gave a doubtful look at the new proposal."
A doubtful Digit is the space between the lines of a measuring tool
Doubtful Sound got it's name from Captain Cook. Doubtful Sound got it's name from Captain Cook.
Doubtful Doubtful
Doubtful. Real doubtful.
Dubious means hesitating or doubtful, questionable in terms of validity or truth.