adj. rot·ten·er,
rot·ten·est 1. Being in a state of putrefaction or decay; decomposed.
2. Having a foul odor resulting from or suggestive of decay; putrid.
3. Made weak or unsound by rot: rotten floorboards.
4. Morally corrupt or despicable: She's rotten to the core.
5. Very bad; wretched: rotten weather.