From Longman Dictionary of Contemporary Englishingenuousin‧gen‧u‧ous /ɪnˈdʒenjuəs/ adjective EXPERIENCED#HONESTan ingenuous person is simple, trusting, and honest, especially because they have not had much experience of life → disingenuous —ingenuously adverb —ingenuousness noun [uncountable]Origin ingenuous (1500-1600) Latin ingenuus “born, free born, honest”, from gignere “to produce children”
