- having rotted or decayed and no longer able to be used, eaten, etc.
- rotten wood
- rotten teeth
- rotten eggs
- The bananas went rotten.
- The whole political system is rotten. [=corrupt]
- What rotten [=lousy] luck!
- They did a rotten job.
- We played a rotten game. [=we did not play well]
- What rotten weather we're having.
- I feel rotten today.
- not happy or pleased
- I feel rotten [=I feel guilty; I am upset] about what I said.
- He was a rotten husband. [=he was not a very good husband]
- She's rotten to the core. [=she's a very bad person; she's a very dishonest person]
- He treats her rotten.
- (Brit) He fancies you (something) rotten. [=he likes you very much]
- Those kids were spoiled rotten by their mother.