Naive and trusting. / Demonstrating childlike simplicity. / Unsophisticated; clumsy or obvious. / Unable to mask one's feelings. / Straightforward, candid, open, and frank.

The condition of being ingenuous. / (countable) An ingenuous behavior.

In an ingenuous manner; frankly, straightforwardly.

plural of ingenuousness

plural of ingenuity

plural of ingenue

The ability to solve difficult problems, often in original, clever, and inventive ways. / (now rare) Ingenuousness; honesty, straightforwardness

An innocent, unsophisticated, naïve, wholesome girl or young woman. / (theater, film) A dramatic role of such a woman; an actress playing such a role. / (rare) Misspelling of ingenu.

(rare) An innocent, unsophisticated, naive, wholesome boy or young man.

plural of ingenu