Unbeaten (adjective)

Not having been defeated or overcome.

Origin:

From the old english word "unbeaten" which means not defeated or not overcome.

Examples:

1. The boxer was still unbeaten after 32 fights.
2. The team had an unbeaten record at home.
3. The trail was unbeaten, no one had ever hiked it before.
4. He remained unbeaten in chess tournament.
5. The stock market was in an unbeaten streak for the last five months.