IPA: /ɪnˈkæl.kjʊləbli/
KK: /ɪnˈkæl.kjə.bli/
In a way that cannot be calculated or measured; extremely or infinitely.
The impact of the discovery was incalculably significant for science.
Incalculably → It is formed from "in-" (meaning not) and "calculable" (from Latin "calculabilis", meaning able to be counted or calculated, from "calculare", meaning to count). The word "incalculably" means not able to be counted or measured, often used to describe something vast or immeasurable.
Think of 'not' ('in-') being able to be 'counted' ('calculable') — that's why incalculably refers to something that cannot be measured.