Stale, as a blog. Or rotten.
ROTTEN
rot·ten | ˈrätn |
adjective (rottener, rottenest)
1 suffering from decay: rotten eggs | the supporting beams were rotten.
• morally, socially, or politically corrupt: he believed that the whole art business was rotten.
2 informal very bad: she was a rotten cook | he’s had rotten luck this year.
• extremely unpleasant: it’s rotten for you having to cope on your own.
• unwell: she tried to tell me she felt rotten.