IPA: /ˈfʌlsəmnəs/
KK: /ˈfʊlsəmnəs/
The quality of being excessively flattering or insincere, often to the point of being unpleasant.
The fulsomeness of his compliments made everyone uncomfortable at the party.
**Fulsomeness** → It is formed from "fulsome" (from Old English *fullsum*, meaning abundant or full) and the suffix "-ness" (meaning the state or quality of). The word "fulsomeness" refers to the quality of being abundant, often in an excessive or insincere manner.
Think of 'full' to remember that 'fulsomeness' means the quality of being excessively abundant or overwhelming.