Here's a breakdown:
Frank:
* Connotation: Honest, open, direct, but with a sense of kindness and consideration.
* Suitable for: Sharing your opinion when you want to be honest but also respectful.
* Example: "To be frank, I don't think that's the best idea."
Blunt:
* Connotation: Direct, abrupt, sometimes even harsh or rude.
* Suitable for: When you need to be very direct, especially in a situation where time is of the essence or there's no room for ambiguity.
* Example: "I'm being blunt here, but you need to improve your work ethic."
Which is better?
It depends on the situation, your relationship with the person, and the message you want to convey.
* If you want to be honest but kind, "frank" is a better choice.
* If you need to be direct and get your point across clearly, "blunt" might be more appropriate.
Here are some additional factors to consider:
* Context: The context of the conversation will also influence your choice of words.
* Relationship: The strength of your relationship with the person you're talking to will also play a role.
* Culture: Different cultures have different levels of tolerance for directness.
Ultimately, the best word to use will depend on the specific situation.