IPA: /ˈpraɪd.fəl.nəs/
KK: /ˈpraɪd.fəl.nəs/
The state of having a high opinion of oneself or one's achievements, often to the point of arrogance.
His pridefulness made it difficult for him to accept help from others.
Pridefulness → It is formed from "pride" (from Old English "pryde", meaning a feeling of self-respect or satisfaction) and "-fulness" (meaning the state of being full of). The word "pridefulness" means the state of being full of pride or having an excessive sense of self-worth.
Think of 'pride' as a feeling of self-respect and 'fulness' as being full of that feeling — that's why pridefulness means being full of pride.