A real-life phrase that fouled our TweetDeck feed over the weekend:
…powerfully impactful visual demonstrations…
Visual demonstrations can be powerful. Some might even be called “high-impact.” Please, though, don’t ever use the dreadful impactful. (So what if it turns up in journalism and academia? So do all sorts of other bastardizations and monstrosities.)
Your visual presentations will still be powerful, and your verbal presentations will have even more impact.
Carry on now.