ingenuous

/ɪnˈdʒɛn.ju.əs/adjective

Innocent and trusting; open and without cunning.

Example sentence

“His ingenuous smile made everyone trust him at once.”

Rare and easily mistaken for 'ingenious'. Its better-known relative is 'disingenuous', meaning insincere.

Related words

ingredientOne of the things, especially foods, that are combined to make a mixture.ingenuityCleverness and skill at solving hard problems in fresh, inventive ways.inhabitTo make a place your home; to live there.ingeniousVery clever and original; showing inventive skill.inherentExisting as a natural, built-in part of something.infuseTo introduce a quality or substance into something so that it spreads all through it.