Really, really bad (4)
(Other definitions for terrible that I've seen before include "Frightful" , "Like tsar Ivan IV" , "Extremely bad" , "What precedes twos < and follows child in France" , "Awful, dire" .)
'really really bad' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for abysmal that I've seen before include "Immeasurably bad" , "Really terrible" , "Very bad or bottomless" , "Bottomless - profound" , "Extremely bad - lamb, say (anag)" .)
'really really bad' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for evil that I've seen before include "Depravity, wickedness" , "Malign" , "Depraved" , "Live kind of badness" , "Live (anag.)" .)
(Other definitions for nasty that I've seen before include "Spiteful and unkind" , "Disgusting" , "Obscene" , "Highly unpleasant" , "Mean" .)