in·ter·ro·bang also in·ter·a·bang 
(ĭn-tĕrə-băng′)
(ĭn-tĕrə-băng′)n.
A punctuation mark (‽) in the form of a question mark superimposed on an exclamation point, used to end a simultaneous question and exclamation.
[INTERRO(GATION POINT) + BANG1, exclamation point (printers' slang).]
- unnatural
- unnaturally
- unnaturalness
- unnecessarily
- unnecessary
- unnerve
- unnervingly
- unnoticeable
- unnoticeably
- unnumbered
- unobjectionable
- unobstructed
- unobtrusive
- unobtrusively
- unobtrusiveness
- unoccupied
- unofficial
- unofficially
- unopposed
- unorganized
- unoriginal
- unornamented
- unorthodox
- unorthodoxly
- unorthodoxy