unbeatable

UK: /ˌʌnˈbiːtəb^əl/ US: /ʌnˈbitəbəl/ ,(un bē′tə bəl)

WordReference Random House Learner's Dictionary of American English © 2025

un•beat•a•ble /ʌnˈbitəbəl/   adj. 

1. that cannot be beaten or defeated:
   an unbeatable team.
2. of the best;
   excellent:
   unbeatable prices.

WordReference Random House Unabridged Dictionary of American English © 2025

un•beat•a•ble  (un bē′tə bəl), adj. 

1. incapable of being beaten;
   impossible to defeat:
   an unbeatable football team.
2. of surpassingly good quality;
   excellent:
   an unbeatable combination of brains and talent.

• un- + beatable 1895–1900

un•beat′a•bly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::

unbeatable / ʌnˈbiːtəb^əl/ adjective

1. unable to be defeated or outclassed; surpassingly excellent