chronic Synonyms
inveterate
continuing
continuous
long-term
protracted
incessant
deep-rooted
recurring
recurrent
habitual
enduring
long-standing
prolonged
persistent
abysmal
permanent
pervasive
rooted
longsome
routine
sempervirent
settled
autoimmune
splendid
repetitive
macrobiotic
persisting
perpetual
perennial
perdurable
recrudescent
pathological
ongoing
subacute
terrible
unrelenting
longtime
built-in
institutionalized
noninvasive
unabating
confirmed
age-long
deep-seated
dyed-in-the-wool
pathologically
yearlong
usual
long-range
untreatable