Definition of unsuspiciousness in US English:

unsuspiciousness

noun

  • See unsuspicious

    • ‘Concerning her unsuspiciousness, however, it should be said that the word applies only to her treatment of myself.’
    • ‘She had known something all the time, and had been taking advantage of her unsuspiciousness!’

Pronunciation

unsuspiciousness

/ˌənsəˈspiSHəsnəs/