IPA: /səˈspɛnsfəl/
KK: /səˈspɛnsfəl/
The quality or state of creating excitement or uncertainty about what will happen next.
The suspensefulness of the movie kept everyone on the edge of their seats.
Suspensefulness → It is formed from "suspense" (from Latin "suspensus", meaning hanging or suspended) and "-ful" (meaning full of) and "-ness" (meaning the state of). The word "suspensefulness" means the state of being full of suspense or uncertainty.
Think of being 'full of' ('-ful') 'suspense' — that’s why suspensefulness describes the state of feeling suspense.