sa·do·mas·o·chism 
(sā′dō-măsə-kĭz′əm, săd′ō-)
(sā′dō-măsə-kĭz′əm, săd′ō-)n.
The combination of sadism and masochism, in particular the deriving of pleasure, especially sexual gratification, from inflicting or submitting to physical or mental pain or suffering.
sa′do·maso·chist n.
sa′do·mas′o·chistic adj.
- unnaturalness
- unnecessarily
- unnecessary
- unnerve
- unnervingly
- unnoticeable
- unnoticeably
- unnumbered
- unobjectionable
- unobstructed
- unobtrusive
- unobtrusively
- unobtrusiveness
- unoccupied
- unofficial
- unofficially
- unopposed
- unorganized
- unoriginal
- unornamented
- unorthodox
- unorthodoxly
- unorthodoxy
- unostentatious
- unostentatiously