IPA: /ˌʌnəˈtrɪb.jʊ.tə.bəl/
KK: /ʌnəˈtrɪb.jʊ.tə.bəl/
Something that cannot be linked or assigned to a specific source or cause.
The origins of the mysterious sound were unattributable, leaving everyone puzzled.
Unattributable → It is formed from "un-" (meaning not), "attributable" (from Latin "attributus", meaning assigned or attributed, from "attribuere", meaning to assign). The word "unattributable" means something that cannot be assigned or attributed to a specific source or cause.
Think of 'not' ('un-') being able to be 'assigned' ('attributable') to something — that's why unattributable means it cannot be assigned to a specific source.