Definitions of indifferent:

• adjective:   neither too great nor too little

  Example: "A couple of indifferent hills to climb"

• adjective:   neither good nor bad

  Example: "An indifferent performance"

• adjective:   characterized by a lack of partiality

  Example: "A properly indifferent jury"

• adjective:   marked by no especial liking or dislike or preference for one thing over another

  Example: "Indifferent about which book you would give them"

• adjective:   fairly poor to not very good

  Example: "Has an indifferent singing voice"

• adjective:   showing no care or concern in attitude or action

  Example: "Indifferent to the sufferings of others"

• adjective:   (often followed by `to') lacking importance; not mattering one way or the other

  Example: "Whether you choose to do it or not is a matter that is quite immaterial (or indifferent)"

• adjective:   marked by a lack of interest

  Example: "It is simply indifferent"

• adjective:   having only a limited ability to react chemically; not active

  Example: "An indifferent chemical in a reaction"