Ō'pin-iăs'ter or Ō'pin-iăs'troŭs or Ō'pin-iā'tre1, a.
[O. Fr. opiniastre, N. Fr. opiniâtre, Lat. as if opiniaster, from opinio, opinion.] Unduly attached to one's own opinion, or stiff in adhering to it. [Obs.] Raleigh.