unbroken

Etymology 1

From Middle English unbroken, from Old English unġebrocen (“unbroken”), equivalent to un- + broken. Cognate with Dutch ongebroken (“unbroken”), German Low German unbroken (“unbroken”), German ungebrochen (“unbroken”).

adj

1. Whole, not divided into parts.
   After the vase had fallen down the flight of stairs we were amazed to find it still unbroken.
2. Of a horse, not tamed.
   There is something majestic about the spirit of an unbroken mustang as it runs wild across the prairie.
3. Continuous, without interruption.
   The team's unbroken winning streak was a record.
   The climb out of Aberdeen is a most forbidding proposition to an engine starting cold; it is quite unbroken for 7 miles up the cliffs to milepost 234. 1950 January, Cecil J. Allen, “British Locomotive Practice and Performance”, in Railway Magazine, page 14

Etymology 2

From unbreak.

verb

1. past participle of unbreak