An Intellectual Onomatopoeia

I was in a discussion recently where the word "visionary" was used. As in, "We're not visionary because we didn't do such-and-such." And the point was raised that we didn't know what the vision actually was. What is the tangible thing that you can latch on to with "visionary"? Trick question. There isn't. It's like abstract: it is what it describes. Go on, try and define abstract concretely (ie without being abstract). Give up yet? How 'bout now? Okay stop before you hurt yourself. It's an intellectual onomatopoeia.

Are you still trying?