Definition of volatile for English Language Learners. : 1  likely to change in a very sudden or extreme way. : 2  having or showing extreme or sudden changes of emotion. : 3  likely to become dangerous or out of control.
expletive (comparative more expletive, superlative most expletive) 1  Serving to fill up, merely for effect, otherwise redundant. 2  Marked by expletives (phrase-fillers).
The definition of an exclamation is a calling out, or something which is suddenly expressed. An example of an exclamation is the phrase Oh my gosh!. YourDictionary definition and usage example.