1. （讨论或争吵）激烈的
A heated discussion or quarrel is one where the people involved are angry and excited.

2. 发怒的;激动的
If someone gets heated about something, they get angry and excited about it.

1. made warm or hot (`het' is a dialectal variant of `heated')

e.g. a heated swimming pool
wiped his heated-up face with a large bandana
he was all het up and sweaty

Synonym: heated uphethet up

2. marked by emotional heat
vehement

e.g. a heated argument