adjective
US/ˌkɑːn.dɪˈsen.dɪŋ/
UK/ˌkɒn.dɪˈsen.dɪŋ/
Behaving as if you are better or smarter than other people, in a way that is annoying.
In context
I hate his condescending tone when he explains things I already know.
Short entry. Full notes coming.