The correct option is B lazy
The word 'industrious' refers to being diligent and hard working.
Option A, hard working refers to a person tending to work with energy and commitment.
Option B, indifferent refers to having no particular interest or sympathy.
Option C, lazy refers to someone unwilling to work and use energy.
Option D, indisposed refers to being slightly unwell.
Thus, according to the meaning, the word 'lazy' is the opposite of the word 'industrious'.