1. superlative form of nasty; most unpleasant, disgusting, or offensive
Usage: superlative form
2. most spiteful, mean, or cruel in behavior or attitude
Usage: superlative form

Examples

• That was the nastiest smell I’ve ever encountered.
• She gave him the nastiest look when he interrupted her.
• The weather turned nasty, but today is the nastiest day yet.
• He made the nastiest comment about her appearance.
• This is the nastiest cold I’ve had all year.
• The nastiest part of the job is cleaning the equipment.
• She can be mean, but her sister is the nastiest of them all.