doubtful

Definition:
1. Open to doubt or suspicion.
2. Fraught with uncertainty or doubt.
3. Unsettled in mind or opinion.

Use 'doubtful' in a sentence:

1. For a time it seemed doubtful that he would move at all.
2. Yet like many college teachers around the U.S., the faculty remain doubtful that their work as educators can be measured by a "learning outcome" such as a graduate's ability to investigate and reason.
3. I feel doubtful about his ability to do the work.
4. They also seemed of very doubtful value.
5. Most biologists, nonetheless, are doubtful that this is a humanlike adolescent growth spurt.
6. As soon as he finished, his supporters applauded vigorously, but most of the masses were taken aback and exchanged doubtful glances.
7. Everyone was doubtful at first, but his statement in detail held up.
8. It is doubtful whether Tweed, even with his fluent French, passed for one of the locals.
9. Like many college teachers around the U.S., the faculty remain doubtful that their work as educators can be measured by a "learning outcome" such as a graduate's ability to investigate and reason.
10. He holds a doubtful attitude towards the latest findings.
11. It is doubtful, however, that human educators will lose their jobs to Bill any time soon.
12. Forsyth is doubtful for tonight's game with a badly bruised leg.
13. Yet like many college teachers around the US, the faculty remain doubtful that their work as educators can be measured by a "learning outcome" such as a graduate's ability to investigate and reason.
14. It is doubtful whether Ted, even with his fluent French, passed for one of the locals.
15. Ecologists argue that the benefits of treating sewage with disinfectants are doubtful.
16. Why did he sound so doubtful?
17. When he weeded out "the most doubtful measures of aggression", only 28% supported a connection.
18. They paused at the top of the stairs, doubtful as to which way to go next.
19. The boys obtained some strings and borrowed some bait from their doubtful father.
20. With her injuries it's doubtful that she'll ever walk again.
21. "His eyes are so round," said Martha, a trifle doubtful.
22. He is a doubtful character.
23. The awful cynicism of this made an uncomfortable impression, and most of them began to look rather doubtful.
24. I was doubtful about what they have said, but I didn't say anything.
25. I was still very doubtful about the chances for success.
26. Whether the authorities will allow inspection is highly doubtful.
27. We were doubtful about the practicability of the plan.
28. His future success is doubtful.
29. The research lacks solid evidence, and therefore, its conclusions are doubtful.
30. In truly doubtful cases, only test crosses will reveal the actual genotype.
31. And whether the community's work contributes much to an overall accumulation of knowledge is doubtful.
32. It's doubtful that a computer program can do that-at least, not without some undesirable results.
33. That in itself was doubtful.
34. The arrangement is of doubtful legality.
35. Rose was doubtful about the whole idea.
36. The speaker was clearly playing to the gallery when he uttered so many doubtful jokes.
37. Americans are less doubtful when it comes to politics: 73% expect to see a female president in their lifetime.
38. He is injured and is doubtful for the game tomorrow.
39. This is a doubtful battle.
40. Glenn Schellenberg was doubtful about the claim that music education helps enhance children's intelligence.
41. It's doubtful whether the car will last another year.
42. This wine is of doubtful quality.
43. It's doubtful whether there'll be any seats left.
44. It's doubtful if this painting is a Picasso.
45. At the beginning of the war things were looking very doubtful.
46. He was doubtful about accepting extra work.