If someone is disingenuous, they are not being straight with you. They may pretend they do not know something, or pretend their reasons are simpler and kinder than they really are. It is a slightly dishonest kind of insincerity — often polite on the surface, and often a little clever.

If someone is disingenuous如果有人是disingenuous，they are not being straight with you他們對你不夠坦白。They may pretend they do not know something他們可能裝作不知道某件事，or pretend their reasons are simpler and kinder than they really are或裝出自己的理由比實際上更單純、更善意。It is a slightly dishonest kind of insincerity這是一種帶點不老實的不真誠——often polite on the surface表面上常常很有禮貌，and often a little clever而且常常有點心機。

Though actually, in formal English this is a strong thing to say about a person. You use it when you think they are playing a game with the truth, not merely shy or careful. “Ingenuous,” without dis-, means open and innocent; this word is the opposite of that openness.

Though actually不過老實說，in formal English this is a strong thing to say about a person在正式英文裡，用這個字形容一個人是很重的說法。You use it when you think they are playing a game with the truth當你覺得對方在跟事實玩把戲時就會用這個字，not merely shy or careful而不是單純害羞或小心而已。"Ingenuous," without dis-, means open and innocent"Ingenuous"，也就是沒有dis-的那個字，意思是坦率天真；this word is the opposite of that opennessdisingenuous正是那種坦率的反面。

It is a grown-up, slightly bookish adjective. You will meet it in essays, news, and argument more than in casual chat.

It is a grown-up, slightly bookish adjective這是個成熟、有點書卷氣的形容詞。You will meet it in essays, news, and argument more than in casual chat你在論說文、新聞和爭論裡遇到它的機會，比在閒聊裡多。