Answer: ILLER
ILLER is a crossword puzzle answer that we have spotted 41 times.
    - More sick, in dialect
 
    - Not so well
 
    - Feeling worse
 
    - Not having as favorable a prognosis
 
    - In worse health
 
    - More wonderful, to a hip-hopper
 
    - More under the weather
 
    - More green around the gills
 
    - Less healthy
 
    - More terrific, to a hip-hopper
 
    - Not as healthy
 
    - Not as hale
 
    - More sick
 
    - Less hale
 
    - Having a worse prognosis
 
    - Greener around the gills
 
    - River near Ulm
 
    - Cooler, to a hip-hopper
 
    - More awesome, to a rapper
 
    - Bavarian river
 
    - -
 
    - Not so healthy
 
    - Not as well
 
    - "No One's ___" (Eminem rap)
 
    - Cooler, in the 'hood
 
    - Cooler, to LL Cool J
 
    - More cool, to a rapper
 
    - More out of sorts
 
    - "No one's ___ than me" (Eminem lyric)
 
    - More cool, in slang
 
    - Better to a rapper, worse to a patient
 
    - Feeling worse, physically
 
    - More sickly
 
    - Danube tributary
 
    - Comparatively sicker
 
    - German river
 
    - Feeling even worse than yesterday
 
    - Less well 
 
    - Better, to a rapper
 
    - More 48-Across
 
    - Better, in rap lingo