unaccustomed

adj

1. Not used to an event or thing, not accustomed.

   “He is unaccustomed to the cold.”

   “[…] I again conveyed his Key into his Pocket, and counterfeiting Sleep, tho’ I never once cloſed my Eyes, lay in Bed till after he aroſe and went to Prayers, an Exerciſe to which I had long been unaccuſtomed.”

   ““Do Veniam,” said his Superior; and the old man seized, with a trembling hand, a beverage to which he had been long unaccustomed, drained the cup with protracted delight, as if dwelling on the flavour and perfume, and set it down with a melancholy smile and shake of the head, as if bidding adieu in future to such delicious potations.”

2. To which one is not accustomed, unfamiliar

   “Guerrilla warfare opens a field of activity for every local capacity, forces the enemy into an unaccustomed method of battle, avoids the evil consequences of a great defeat, secures the national war from the risk of treason, and has the advantage of not confining it within any defined and determinate basis of operations.”

   “He stood transfixed before the unaccustomed view of London at night time, a vast panorama which reminded him […] of some wood engravings far off and magical, in a printshop in his childhood.”

   “Later that day, whether from the accumulated effect of seeing hunger, from the unaccustomed food or from the sun, I get sick.”

verb

1. (form-of, participle, past)simple past and past participle of unaccustom