He was indifferent to the proposal, since it didn't affect him, either way.
marked by no especial liking or dislike or preference for one thing over another; "indifferent about which book you would give them"; "was indifferent to their acceptance or rejection of her invitation"
having only a limited ability to react chemically; not active; "inert matter"; "an indifferent chemical in a reaction"
neither good nor bad; "an indifferent performance"; "a gifted painter but an indifferent actor"; "her work at the office is passable"; "a so-so golfer"; "feeling only so-so"; "prepared a tolerable dinner"; "a tolerable working knowledge of French"
characterized by a lack of partiality; "a properly indifferent jury"; "an unbiased account of her family problems"
Feeling no interest, anxiety, or care, respecting anything; unconcerned; inattentive; apathetic; heedless; as, to be indifferent to the welfare of one's family
showing no care or concern in attitude or action; "indifferent to the sufferings of others"; "indifferent to her plea"
Not making a difference; having no influence or preponderating weight; involving no preference, concern, or attention; of no account; without significance or importance
(often followed by `to') lacking importance; not mattering one way or the other; "whether you choose to do it or not is a matter that is quite immaterial (or indifferent)"; "what others think is altogether indifferent to him"
Neither particularly good, not very bad; of a middle state or quality; passable; mediocre
(usually followed by `to') unwilling or refusing to pay heed; "deaf to her warnings"
If you describe something or someone as indifferent, you mean that their standard or quality is not very good, and often quite bad. She had starred in several very indifferent movies = mediocre + indifferently in·dif·fer·ent·ly an eight-year-old girl who reads tolerably and writes indifferently
If you accuse someone of being indifferent to something, you mean that they have a complete lack of interest in it. People have become indifferent to the suffering of others. + indifferently in·dif·fer·ent·ly `Not that it matters,' said Tench indifferently
fairly poor to not very good; "has an indifferent singing voice"; "has indifferent qualifications for the job