IPA: /ˈnʌθɪŋnəs/
KK: /nʌθɪŋnəs/
The state of not existing or having no value; a complete emptiness or void.
In the depths of winter, the landscape seemed to be filled with nothingness.
Nothingness → It is formed from "no-" (meaning not) and "thing" (from Old English "þing", meaning an object or entity) and the suffix "-ness" (meaning the state or quality of). The word "nothingness" refers to the state of being without anything or the absence of existence.
Think of 'no' meaning not and 'thing' referring to an object — together they describe the state of being without any object or existence.