ειλικρινής in English:

I don't think he is truthful.

She brought up her children to be truthful.

A man is never more truthful than when he acknowledges himself a liar.

I think you’re confusing being rude with being truthful

What makes you even think they might not be truthful?

To be quite truthful with you, I’m not very keen on this colour.

We have the strategy pointing in one direction, and your budget proposal is, to be truthful, pointing in another direction.

I think advertising companies should be more truthful about their products.

I'm a truthful person, I never lie.

Do you want a new world to live in, mirror of your deepest and most truthful desires?

His report was truthful.

A truthful politician? Pull the other one!

Truthful speech is not elegant, and elegant speech is not truthful. Good words are not persuasive, and persuasive words are not good. The knowledgeable are not many, and the many are not knowledgeable.

He is usually straightforward and sincere and thereby gains the confidence of those who meet him.

To become trustworthy people, we must be sincere.

The charity sent out sincere thanks to the public for all the help it had received for the victims of the famine.

Sincere apologies.

Imitation is the sincerest form of flattery.

Wishing to be sincere in their thoughts, they first extended to the utmost their knowledge. Such extension of knowledge lay in the investigation of things.

She gave me such a sincere welcome that I was at home with her immediately.

You have always been a sincere friend, thank you!

My children make pathetically sincere efforts to get up early.

We lay emphasis on the importance of being sincere.

Looking for somebody sincere, open-minded, thoughtful.

Overall, sincere congratulations to the rapporteurs and thank you very much for the cooperation.

The former England coach, were at the High Court in London to hear the News of the World offer its 'sincere apologies'.

If you want to build rapport with someone, it’s important to be sincere. People like to know that you mean what you say.