| 1. | to be uncertain about; consider questionable or unlikely; hesitate to believe. |
| 2. | to distrust. |
| 3. | Archaic. to fear; be apprehensive about. |
| 4. | to be uncertain about something; be undecided in opinion or belief. |
| 5. | a feeling of uncertainty about the truth, reality, or nature of something. |
| 6. | distrust. |
| 7. | a state of affairs such as to occasion uncertainty. |
| 8. | Obsolete. fear; dread. |
| 9. | beyond the shadow of a doubt, with certainty; definitely. Also, beyond a doubt, beyond doubt. |
| 10. | in doubt, in a state of uncertainty or suspense: His appointment to the position is still in doubt. |
| 11. | no doubt,
|
| 12. | without doubt, unquestionably; certainly. |
