ppl. a. Sc. Obs. [UN-1 8: cf. UNWARNIST.] Unannounced. So † Unawarnistly adv., without warning. Obs.
1533. Bellenden, Livy, II. x. (S.T.S.), I. 165. Brokin of þare purpois be vnawarnist cummyng of romane legiouns. Ibid., IV. xii. II. 89. This l. posthvmeus Invadit þe Inemyis vnawarnistlie.