Interjectional

Part of speech: adjective (a.)

1. Thrown in between other words or phrases; parenthetical; ejaculatory; as, an interjectional remark.

2. Pertaining to, or having the nature of, an interjection; consisting of natural and spontaneous exclamations. Certain of the natural accompaniments of interjectional speech, such as gestures, grimaces, and gesticulations, are restrained by civilization. Earle.