1.Definition: (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"
2.Definition: (usually followed by `to') unwilling or refusing to pay heed
3.Definition: being neither good nor bad
"An indifferent performance", "A gifted painter but an indifferent actor"
4.Definition: characterized by a lack of partiality
"A properly indifferent jury"
5.Definition: fairly poor to not very good
"Has an indifferent singing voice", "Has indifferent qualifications for the job"
6.Definition: having only a limited ability to react chemically; chemically inactive
"An indifferent chemical in a reaction"
7.Definition: marked by a lack of interest
"The universe is neither hostile nor friendly; it is simply indifferent"
8.Definition: 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"
9.Definition: neither too great nor too little
"A couple of indifferent hills to climb"
10.Definition: showing no care or concern in attitude or action
"Indifferent to the sufferings of others", "Indifferent to her plea"