WordWeb Online

1. Not functioning properly
   "something is amiss";
   - awry, haywire, wrong

1. Away from the correct or expected course
   "something went badly amiss in the preparations";
   - awry
    
2. In an improper, mistaken or unfortunate manner
   "if you think him guilty you judge amiss"; "he spoke amiss"; "no one took it amiss when she spoke frankly"
    
3. In an imperfect or faulty way
   "Miss Bennet would not play at all amiss if she practised more";
   - imperfectly

See also: malfunctioning, nonfunctional