Unbeatable (adjective)

Not able to be defeated or overcome; unbeatable.

Origin:

From the word beat meaning "to defeat" and the prefix un- meaning "not".

Examples:

1. The team had an unbeatable record.
2. The company's reputation was unbeatable.
3. The unbeatable offer was too good to pass up.
4. The unbeatable strategy was key to the company's success.
5. He was an unbeatable opponent in the game.