IPA: /ɪnˈɑːɡjʊəbl/
KK: /ɪnˈɑrɡjʊəbl/
Something that cannot be argued against or doubted; it is certain and clear.
The evidence presented in the trial was inarguable, leaving no room for doubt.
Inarguable → It is formed from "in-" (meaning not) and "arguere" (from Latin, meaning to make clear or to argue). The word "inarguable" means something that cannot be argued against or is not open to dispute.
Think of 'not' ('in-') being combined with 'to argue' ('arguere') — this helps you remember that inarguable means something that cannot be disputed.