adjective. Lacking in cunning, guile, or worldliness; innocent or naive: synonym: naive.

adjective. Straightforward or frank; candid.

Freeborn; of honorable extraction.

Generous; noble: as, an ingenuous ardor or zeal.

Free from restraint or reserve; frank; open; candid: used of persons or things: as, an ingenuous mind; an ingenuous confession.

Same as ingenious.

Synonyms Frank, Naïve, etc. (see candid); unreserved, artless, guileless, straightforward, truthful.

adjective. Of honorable extraction; freeborn; noble.

adjective. Noble; generous; magnanimous; honorable; upright; high-minded.

adjective. Free from reserve, disguise, equivocation, or dissimulation; open; frank

adjective. Ingenious.

adjective. Naive and trusting.

adjective. Demonstrating childlike simplicity.

adjective. Unsophisticated; simple.

adjective. Unable to mask one's feelings.

adjective. Straightforward, candid, open, and frank.

adjective. characterized by an inability to mask your feelings; not devious

adjective. lacking in sophistication or worldliness

"Criminals on trains often adopted what the researchers described as ingenuous tactics in their activities."

disingenuous  

candid  heart-to-heart  naive  naïf  open  

disingenuous  strenuous  

amiable  artless  boyish  candid  childlike  

artless  artless  bluff  blunt  bold