Answer: illest

AnswerCrossword Clue
ILLESTMost unsound.
illestuseated
illestusing suffering or distress ill weather
illestimmoral vicious
illestILL, not well
illestvolving difficulty hard
illestfriendly hostile ill feeling
ILLESTMost inauspicious
ILLESTGreenest around the gills
ILLESTSickbay superlative
ILLEST'80s rappers all tried to be this
ILLESTCoolest, in rap slang
ILLESTLeast sound
ILLESTLeast well
ILLESTMost unlucky: Colloq.
ILLESTSuperlatively phat
ILLESTMost unwell
ILLESTLeast hale
ILLESTWorst case
ILLESTMost indisposed
ILLESTMost cool, in slang
ILLESTMost in need of a doctor
ILLESTMost sickly
ILLESTLeast healthy
ILLESTBest, at the skatepark