The Collaborative International Dictionary
Incertain
Incertain \In*cer"tain\, n. [Pref. in- not + certain: cf. F. incertain, L. incertus. See Certain.] Uncertain; doubtful; unsteady. -- In*cer"tain*ly, adv.
Very questionable and of uncertain truth.
--Sir T.
Browne.
Wiktionary
incertain
a. uncertain
WordNet
incertain
Usage examples of "incertain".
To-day the word “heresy” seems to be as obsolete and as redolent of a Wardour-street vocabulary as if one were to talk of a game of cards at Crimp or Incertain, and to any save a dusty mediaevalist it would appear to be an antiquarian term.