Anger is a negative emotion felt by humans and celestial beings, including God. It can be godly or ungodly depending on its motives/intentions.
Positive: In a dream, anger could represent God showing you how to control your anger, or ridding anger from your life. It could also represent God provoking you to jealousy. God could also be showing you how to be slow to anger through a dream.
Negative: Dreaming that you are angry could represent a spirit of wrath in your life. It could also represent a hardness of heart or even God’s anger toward a certain group of people.
(Ephesians 4:31; Ephesians 4:26; Colossians 3:8; Romans 10:19; Psalm 103:8; Colossians 3:21; Mark 3:5; Daniel 9:16; Ecclesiastes 7:9; Proverbs 27:4; Proverbs 15:1; Psalm 85:5).