IPA: /ˌɪməˈtɪəriəlɪti/
KK: /ˌɪməˈtɪəriəlɪti/
The quality or state of not being physical or material; something that cannot be touched or measured.
The immateriality of her thoughts made it difficult for others to understand her feelings.
Immateriality → It is formed from "in-" (meaning not) and "materialis" (from Latin, meaning pertaining to matter) and the suffix "-ity" (meaning the state or condition of). The word "immateriality" refers to the state of being not pertaining to matter or being non-physical.
Think of 'not' ('in-') and 'pertaining to matter' ('materialis') to remember that 'immateriality' means the state of being non-physical.