Answer: boniest

AnswerCrossword Clue
BONIESTSkinny to the max
BONIESTHardest to eat, as fish
BONIESTLeast fleshy
BONIESTMost skinny
BONIESTMost difficult to fillet
BONIESTMost scrawny.
BONIESTMost emaciated
BONIESTSuperlatively spare
BONIESTMost gaunt
BONIESTMost scrawny
boniestfull of bones
boniestBON, good (having positive or desirable properties)
boniestskinny; emaciated
boniestof or like bone
boniesthaving prominent bones; big-boned