interjectional
adjective
in·ter·jec·tion·al ˌin-tər-ˈjek-sh(ə-)nəl 
1
: of, relating to, or constituting an interjection : ejaculatory
2
: thrown in between other words : parenthetical
interjectionally adverb
Word History
First Known Use
1761, in the meaning defined at sense 1