what is intentional
inâ¢tenâ¢tionâ¢al. 1. done with intention or on purpose; intended: an intentional insult. 2. of or pertaining to intention or purpose. 3. Philos. a. pertaining to an appearance, phenomenon, or representation in the mind; phenomenal; representational. b. pertaining to the capacity of the mind to refer to an existent or nonexistent object.