dis ‧ in ‧ gen ‧ u ‧ ous /ˌdɪsənˈdʒenjuəs◂, ˌdɪsɪnˈdʒenjuəs◂/ BrE AmE adjective formal
not sincere and slightly dishonest OPP ingenuous :
Keeping the details of the tax changes vague is disingenuous.
—disingenuously adverb
dis ‧ in ‧ gen ‧ u ‧ ous /ˌdɪsənˈdʒenjuəs◂, ˌdɪsɪnˈdʒenjuəs◂/ BrE AmE adjective formal
not sincere and slightly dishonest OPP ingenuous :
Keeping the details of the tax changes vague is disingenuous.
—disingenuously adverb
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012