What's the meaning of 高冷?
It's an internet slang, so you can't find it on a normal dictionary.

高 refers to 高高在上,高傲, which mean &quot;to be arrogant&quot;, &quot;to have an attitude of looking down upon someone&quot;
冷 refers to 冷漠,冷冰冰, which mean &quot;to be indifferent&quot;, &quot;unconcern&quot;

so 高冷 basically means a cold attitude.