unaccustomed
adj
1 ~to sth not in the habit of doing sth; not used to sth 不习惯的; 不适应的
Unaccustomed as I am to public speaking...本人并不习惯於当众讲话....
2 uncharacteristic or unusual 不寻常的; 不一般的
his unaccustomed silence 他那罕有的沉默
the unaccustomed luxury of cheap foreign travel 廉价国外旅游中难得的享受.