unarguable
US /ʌnˈɑːrɡ.ju.ə.bəl/
UK /ʌnˈɑːrɡ.ju.ə.bəl/

1.
not able to be disputed or questioned; undeniable.
:
•
It's an unarguable fact that the Earth revolves around the Sun.
•
Her talent is unarguable; she's truly gifted.
not able to be disputed or questioned; undeniable.