✅ Confident describes someone who has a strong belief in something and is completely certain (I was confident I would get a good score).

✅ Sure describes someone who is convinced or lacks doubt (I am sure I locked the door).

✅ Both of these words refer to lacking doubt and believing in yourself or something that you’ve done (I’m confident that I can do this; I’m sure I’m right).

✅ Sure can be used to refer to a previous sense of confidence that was misplaced (I was sure he would never betray me).

✅ Unemotional describes someone who isn’t experiencing strong feelings or who doesn’t appear to be experiencing such feelings (an unemotional reaction to the news).

✅ Glacial describes someone who is particularly cold and unsympathetic (a glacial response).

✅ Both of these words describe people who do not express warm feelings when you might expect them to.

✅ Unemotional suggests a lack of feelings, whereas glacial suggests the presence of negative feelings, such as disdain, which are expressed in a detached way.

✅ Powerful refers to people and things that are strong, potent, or influential (a powerful grip; a powerful force for good; a powerful novel).

✅ Dynamic refers to people and things that are energetic, vital, and forceful (She was a dynamic speaker).

✅ These two words both describe things that are forceful (a powerful speech; a dynamic performance).

✅ However, powerful emphasizes strength, whereas dynamic emphasizes energy and vitality.