Persistent
'persistent' is the definition.
(a chronic condition is a persistent one)
This is the entire clue.
(Other definitions for chronic that I've seen before include "Deep-seated - long-lasting" , "Long-lasting; deplorable" , "Long-lasting, pain perhaps" , "Of illness, prolonged or constantly recurring" , "Awful" .)
'persistent' is the definition.
(I know that persistent can be written as dogged)
This is all the clue.
(Other definitions for dogged that I've seen before include "Stubbornly persisting" , "Follow closely - persistent" , "Stubbornly persistent in canine way" , "Stubborn or determined in canine manner" , "Pursued - unflagging" .)
'persistent' is the definition.
(I know that persistent can be written as relentless)
This is the entire clue.
(Other definitions for relentless that I've seen before include "Allowing no respite" , "Dogged" , "Persistent" , "Inexorable" , "Uncompromising" .)