Synonyms for indifferent

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1. Lacking interest

   apathetic, unconcerned, uninterested, disinterested, detached, unaroused, listless, cold, cool, unemotional, unsympathetic, emotionless, passionless, heartless, unresponsive, incurious, lymphatic, unfeeling, uncommunicative, nonchalant, impassive, impervious, callous, supine, stony, icy, chill, glacial, reticent, remote, reserved, distant, unsocial, diffident, scornful, supercilious, blasé, phlegmatic, stoical, stolid, unimpressed, heedless, unmoved, not inclined toward, neutral, impartial, uncaring, aloof, silent, disdainful, haughty, superior, condescending, snobbish, standoffish, not caring, lukewarm; see also unconcerned.

   Antonyms excited*, aroused, enthusiastic.

2. Ordinary

   average, routine, mediocre, undistinguished; see common 1, dull 4, fair 2.

indifferent implies either apathy or neutrality, esp. with reference to choice to remain indifferent in a dispute; unconcerned implies a lack of concern, solicitude, or anxiety, as because of callousness, ingenuousness, etc. to remain unconcerned in a time of danger; incurious suggests a lack of interest or curiosity incurious about the details; detached implies an impartiality or aloofness resulting from a lack of emotional involvement in a situation he viewed the struggle with detached interest; disinterested strictly implies a commendable impartiality resulting from a lack of selfish motive or desire for personal gain a disinterested journalist, but it is often used to mean not interested, or indifferent