1. tentative hesitant or lacking confidence; unsettled in mind or opinion
  2. oversensitive unduly sensitive or thin-skinned
  3. electronegative having a negative charge
  4. Rh negative the blood group whose red cells lack the Rh factor
  5. imperative requiring attention or action
  6. prerogative a right reserved exclusively by a person or group
  7. effective producing or capable of producing an intended result
  8. overactive more active than normal
  9. overheating excessive heating
  10. affricative a composite speech sound consisting of a stop and a fricative articulated at the same point (as `ch' in `chair' and `j' in `joy')
  11. overeating eating to excess (personified as one of the deadly sins)
  12. averting the act of turning yourself (or your gaze) away
  13. instinctive unthinking
  14. aggregative formed of separate units gathered into a mass or whole
  15. rh-negative of persons (or their blood) lacking the Rh factor present in their red blood cells
  16. investigative designed to find information or ascertain facts
  17. interrogative relating to sentences that ask a question
  18. overprotective overly protective
  19. overdelicate extremely delicate
  20. overrating a calculation that results in an estimate that is too high