disingenuousness
/ˌdɪsɪnˈdʒɛnjuəsnəs/
noun
- The quality of being dishonest or insincere, especially by pretending to know less than one really does.
- The politician's disingenuousness frustrated voters who wanted straight answers.
- I saw through his disingenuousness; he knew exactly what was happening.
- Her disingenuousness was obvious when she pretended not to understand the simple question.
Synonyms