IPA: //ˈblɪs.fəl.nəs//
KK: /ˈblɪs.fəl.nəs/
The state or quality of being extremely happy or joyful.
The blissfulness of the moment made everyone smile.
Blissfulness is formed from "bliss" (from Old English "blīðs", meaning joy or happiness) and "-fulness" (meaning the state of being full of). The word "blissfulness" refers to the state of being full of joy or happiness.
Think of 'bliss' as a state of joy, and '-fulness' means being full of that joy. This helps you remember that blissfulness means being full of happiness.