Personal Traits

Sincere: to be honest and trustworthy.

I think she was being sincere, so I think we can trust her.

Sometimes it's very difficult to know if someone is being sincere or is just a good liar.

I thought he wes being sincere, but when I looked into his background it seems that he can't be trusted.

Naive: overly simple and lacking experience.

He wants to change the world, but he's very naive, so he needs someone to help him.

I think we can take advantage of him because he's naive and impatient.

Internet criminals are very clever and can often fool naive people into giving away confidential information.

Brilliant: highly intelligent, or exceptional in brightness; the opposite of dull.

There's no doubt that he is a brilliant scientist, but he is a very poor manager.

It's amazing how such a brilliant man can be so stupid around women!

He's brilliant but naive, so he needs someone with a lot of experience to help him.

Cruel: mean, manipulative and hurtful; the opposite of kind.

He can be cruel when he doesn't like someone, so don't expect him to be nice to you.

I was shocked by how cruel he was when he fired her.

People who are cruel to animals should be punished for their behavior.

Clever: innovative, creative, very smart.

He found a clever solution that allowed us to reduce costs.

Advertisers are very clever at getting people to buy things they don't really need.

They have developed a very clever way to increase the efficiency of their sales team.

He isn't as clever as he thinks he is, so we may be able to find a weakness in his plan.

It appeared to be a clever idea at first, but it failed because it ignored some important  details.

Skeptical: needs proof or evidence to overcome doubts; the opposite of convinced.

I'm sure they will be skeptical of our results, so we need to bring convincing evidence.

I'm skeptical that such a simple design can satisfy our requirements.

She was skeptical that we could finish the project on time, and now she has been proven right.

I don't understand how people can be so cruel to animals.

I doubt if he's being sincere, so we should protect ourselves in case he breaks his promise.