愛 理 不 理 ài lǐ bù lǐ : look cold and indifferent; be standoffish

不 聞 不 問 bù wén bù wèn : not bother to ask questions or listen to what's said; show no interest in sth; be indifferent to something

不 怎 麼 樣 bù zěn me yàng : not up to much; very indifferent

淡 «澹» dàn : insipid; diluted; weak; light in color; tasteless; fresh; indifferent; nitrogen

Big5: , Unicode: 6de1 (淡),
Links: MT, Cantonese, Ld, Chinese Language

恝 jiá : indifferent

Big5: , Unicode: 605d (恝),
Links: MT, Cantonese, Ld, Chinese Language

冷 淡 lěng dàn : cold; indifferent

無 關 緊 要 wú guān jǐn yào : indifferent; insignificant

無 所 謂 wú suǒ wèi : to be indifferent; not to matter