Definition of seductiveness in US English:

seductiveness

noun

  • See seductive

    • ‘What Rosenbaum is drawn to is the seductiveness of the hidden.’
    • ‘While his work, in its seductiveness, might appeal to unsophisticated tastes, there is nothing unsophisticated about the paintings themselves.’
    • ‘The idea holds enough truth and seductiveness to make it easy to forget its delusional dangers.’
    • ‘Steve knows all about the glamour and seductiveness of drugs.’
    • ‘It's also the one season in which couples and singles are at peace with each other, as both benefit from summer's seductiveness.’

Pronunciation

seductiveness

/səˈdəktivnəs//səˈdəktɪvnəs/