IPA: /ʌnˈvɛrɪfaɪəbl/
KK: /ʌnˈvɜrɪfaɪəbl/
Not able to be proven true or false through evidence or confirmation.
The claims made in the report were unverifiable, leading to skepticism among the audience.
Unverifiable → It is formed from "un-" (meaning not) and "verifiable" (from Latin "verificare", meaning to make true or confirm). The word "unverifiable" means not able to be confirmed or proven true.
Think of 'not' ('un-') being added to something that can be 'confirmed' ('verifiable') — that's why unverifiable means something that cannot be confirmed.