The definition of ingenuous is open or frank.(adjective)
An example of ingenuous is a person who tells the truth.
See ingenuous in Webster's New World College Dictionary
Origin: L ingenuus, native, inborn, freeborn, noble, frank < ingignere, to engender < in-, in + gignere, to produce: see genus
See ingenuous in American Heritage Dictionary 4
Origin: Latin ingenuus, honest, freeborn; see genə- in Indo-European roots.
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