<p><strong>Adjective</strong></p><ul><li>without interest or concern; not caring; apathetic: his indifferent attitude toward the suffering of others</li><li>having no bias, prejudice, or preference; impartial; disinterested</li><li>neither good nor bad in character or quality; average; routine: an indifferent specimen</li><li>not particularly good, important, etc.; unremarkable; unnotable: an indifferent success; an indifferent performance</li><li>Synonyms: commonplace, uninspired, undistinguished, mediocre</li><li>of only moderate amount, extent, etc.</li><li>not making a difference, or mattering, one way or the other; immaterial or unimportant</li><li>not essential or obligatory, as an observance</li><li>making no difference or distinction, as between persons or things: indifferent justice</li><li>neutral in chemical, electric, or magnetic quality</li><li>Biology: not differentiated or specialized, as cells or tissues</li></ul><p><strong>Noun</strong></p><ul><li>an ethically or morally indifferent act</li><li>a person who is indifferent, especially in matters of religion or politics</li></ul><p><strong>Adverb</strong></p><ul><li>Archaic: indifferently: I am indifferent well</li></ul>