unbeaten

[adj] - not conquered
Found on http://www.webdictionary.co.uk/definition.php?query=unbeaten

unbeaten

unconquered adjective not conquered
Found on http://wordnetweb.princeton.edu/perl/webwn?s=unbeaten

Unbeaten

HMS Unbeaten was a British U Class submarine of 540 tons displacement launched and sunk during the Second World War. HMS Unbeaten was powered by two Davey Paxman diesel engines providing a top speed of 11 knots surfaced and two electric motors providing a top speed of 9 knots submerged. She carried a complement of 31 was armed with one 3 inch gun; ...
Found on http://www.probertencyclopaedia.com/browse/RU.HTM

Unbeaten

Not out.
Found on http://www.wandererscricket.com/glossary.html
No exact match found