Novel found to contain a lot of compassion, which is novel (7-2)
I believe the answer is:
unheard-of
This might be a double definition.
'novel found to contain a lot of compassion which' is the first definition.
'unheard of' can be an answer for 'novel' (thesaurus). I am not certain of the rest of the definition.
'is novel' is the second definition.
(thesaurus)
Can you help me to learn more?
(Other definitions for unheard-of that I've seen before include "Without precedent" , "Previously unknown" , "Fear hound being not previously known" , "Not previously known or done - inaudible?" , "Unknown - novel" .)