What's the opposite of safe?
dangerous
what's the opposite of difficult?
easy
What's the opposite of cruel?
kind
What's the opposite of nice?
mean / unfriendly
What's the opposite of poor?
rich
What's the opposite of interesting?
boring
What's the opposite of ugly?
beautiful, wonderful
what's the opposite of anxious?
peaceful, relaxed
What's the opposite of polite?
disrespectful
What's the opposite of happy?
sad