Definition from Wiktionary, the free dictionary
illocutionary (not comparable)
- (linguistics) Of, pertaining to, or deriving from illocution, the performance of acts by speaking.
- "I pronounce you man and wife" is a descriptive statement, but also has illocutionary force.
- illocutional (rare)
Related terms 
Derived terms 
of, pertaining to, or derived from illocution