WordWeb Online

1. Not divisible by two
   - uneven
    
2. Not easily explained
   "it is odd that his name is never mentioned"
    
3. An indefinite quantity more than that specified
   "invited 30-odd guests"
    
4. Beyond or deviating from the usual or expected
   "had an odd name";
   - curious, funny, peculiar, queer, rum [Brit, informal], rummy [Brit, archaic, informal], singular
    
5. Of the remaining member of a pair
   "an odd glove";
   - unmatched, unmated, unpaired
    
6. Not used up
   "some odd dollars left";
   - leftover, left over, left, remaining, unexpended

Derived forms: oddest, odder

See also: inexact, mismatched, oddball, strange, unexhausted, unusual

Antonym: even

Encyclopedia: Odd, West Virginia