Adequate, aloof, (plain) vanilla, and ok are all synonyms for indifferent. Heedful and caring are antonyms of indifferent. And here are 82 another word for indifferent.
Aloof, apathetic about/towards, bored by, callous, careless of, casual about, cavalier about, cold, cool, detached, dismissive of, dispassionate, distant, emotionless, frivolous about, heedless of, impassive, insouciant, lukewarm about, mindless of, nonchalant about, oblivious to, offhand about, passionless, phlegmatic about, reckless about, regardless of, uncaring about, unconcerned about, unemotional, unenthusiastic about, unfeeling, unimpressed by, uninterested in, uninvolved in/with, unmoved by, unmoved, unresponsive to, unresponsive, unsympathetic, weary of, and pococurante are all synonyms for indifferent.
(plain) vanilla, ok, adequate, amateur, amateurish, average, bog-standard, commonplace, everyday, fair-to-middling, fair, forgettable, inferior, lacklustre, mediocre, medium, middle-of-the-road, middling, moderate, no great shakes, not so hot, not up to much, not very good, nothing to write home about, ordinary, passable, pedestrian, prosaic, run-of-the-mill, second-rate, so-so, tolerable, undistinguished, unexceptional, unexciting, uninspired, unremarkable, workaday, and half-pie are all another word for indifferent.
Indifferent synonym page has a variety of synonyms that differ in length. 1 synonym with 2, 5, 6, 19, 21, and 23 letters and 4 synonyms with 4, 9, 14, and 15 letters. 8 synonyms with 7 letters and 11 synonyms with 8 letters.
10 synonyms with 10, and 11 letters and 7 synonyms with 12 letters. 9 synonyms with 13 letters and 2 synonyms with 16 letters. For a total of 79 another word for indifferent.
She seemed indifferent to the news.
He was indifferent about the decision.
They remained indifferent to the outcome.
Her reaction was oddly indifferent yesterday.