Making, or tending to make, an impression; having power to impress; adapted to excite attention and feeling, to touch the sensibilities, or affect the conscience; as, an impressive discourse; an impressive scene.
Thunder is good, thunder is impressive; but it is lightning that does the work. Mark Twain
People who are unable to motivate themselves must be content with mediocrity, no matter how impressive their other talents. Andrew Carnegie
For me, when I was a kid, volunteering was the last thing I was thinking about. When I see kids doing it now, it amazes me. It's very impressive, it gives them something productive to do as opposed to getting in trouble. For them to take time out at such a young age is remarkable. I think all kids should take a little time out to volunteer. Derek Jeter
Scientific views end in awe and mystery, lost at the edge in uncertainty, but they appear to be so deep and so impressive that the theory that it is all arranged as a stage for God to watch man's struggle for good and evil seems inadequate. Richard P. Feynman
The sudden appearance of mushrooms after a summer rain is one of the more impressive spectacles of the plant world. John Tyler Bonner