well-known or well known, which form is right?

I would use well known.

Please use well-known.

It is a well-known fact that he is well known.

Both can be used, but a hyphen is required when the phrase is adjectival.

Feebs11It is a well-known fact that he is well known.

Both can be used, but a hyphen is required when the phrase is adjectival.

That's how I learned it.

Next question: does it apply to other adv/adj combinations? [His desk is poorly organized ~ H

PhilipNext question: does it apply to other adv/adj combinations? [His desk is poorly organized ~ His poorly-organized desk is preventing his getting work done.]

I recently had this conversation with a friend, and she insists that the hyphen is used only with "well". Ideas, Feebs? Anyone?

What a great example!

Thank you.

Philip

Feebs11It is a well-known fact that he is well known.

Both can be used, but a hyphen is required when the phrase is adjectival.

That's how I learned it.
Next question: does it apply to other adv/adj combinations? [His de

Feebs11

Philip

Feebs11It is a well-known fact that he is well known.

Both can be used, but a hyphen is required when the phrase is adjectival.

That's how I learned it.

Next question: does it apply to

Feebs11

Philip

Feebs11It is a well-known fact that he is well known.

Both can be used, but a hyphen is required when the phrase is adjectival.

That's how I learned it.

Next question: does it apply to

I hold by my training - adverbial phrases are not hyphenated. But at the end of the day, if you choose to hyphenate on the grounds that it makes the sentence clear, then hyphenate.