Main entry: indigestible
Definition: digested with difficulty
Antonyms: digestible
Definition: capable of being converted into assimilable condition in the alimentary canal
Antonyms: light
Definition: of comparatively little physical weight or density
Antonyms: light
Definition: psychologically light; especially free from sadness or troubles
Antonyms: light
Definition: not great in degree or quantity or number
Antonyms: light
Definition: (physics, chemistry) not having atomic weight greater than average
Antonyms: light
Definition: of little intensity or power or force
Antonyms: light
Definition: of the military or industry; using (or being) relatively small or light arms or equipment