incertain Meaning, Definition & Usage

  1. adjective lacking or indicating lack of confidence or assurance
    unsure; uncertain.
    • uncertain of his convictions
    • unsure of himself and his future
    • moving with uncertain (or unsure) steps
    • an uncertain smile
    • touched the ornaments with uncertain fingers

WordNet

In*cer"tain noun
Etymology
Pref. in- not + certain: cf. F. incertain, L. incertus. See Certain.
Definitions
  1. Uncertain; doubtful; unsteady. -- In*cer"tain*ly, adv.
    Very questionable and of uncertain truth. Sir T. Browne.

Webster 1913