WordWeb Online

1. Beyond question
   "a mathematical certainty"
    
2. Statistically possible though highly improbable
   "have a mathematical chance of making the playoffs"
    
3. (mathematics) characterized by the exactness or precision of mathematics
   "mathematical precision"
    
4. Of or pertaining to or of the nature of mathematics
   "a mathematical textbook"; "slide rules and other mathematical instruments"; "a mathematical solution to a problem"; "mathematical proof"
    
5. Relating to or having ability to think in or work with numbers
   "a mathematical whiz";
   - numerical

See also: exact, possible, unquestionable

Encyclopedia: Mathematical