IPA: /ɪˈmɛʒərəbli/
KK: /ɪˈmɛʒərəbli/
In a way that cannot be measured or quantified; to an extent that is beyond measurement.
The beauty of the landscape was immeasurably enhanced by the setting sun.
Immeasurably → It is formed from "in-" (meaning not) and "measurable" (from Latin "mensurabilis", meaning able to be measured, from "metiri", meaning to measure). The word "immeasurably" means not able to be measured, indicating an extent or degree that is beyond measurement.
Think of 'not' ('in-') being able to be 'measured' ('measurable') — that's why immeasurably means something that cannot be measured.