A most unfair condition (8)

I believe the answer is:

ugliness

I'm a little stuck... Click here to teach me more about this clue!

'a most unfair condition' is the definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.

This is all the clue.

Can you help me to learn more?

(Other definitions for ugliness that I've seen before include "Unattractiveness" , "threatening behaviour" , "Complete lack of beauty" , "Repulsive appearance" , "Unsightly quality" .)

I've seen this clue in The Telegraph and The Globe and Mail.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.