Invisibly

At the end of last month, May of 2014, Bratislav, of Croatian descent, had left the Lulu Island neighbourhood, he having bought a new house and abandoning his slender townhouse. One of our last meetings in the neighbourhood was at the Rideau School field. We discussed plenty. Russia and China had been "State Capitalist" regimes and not "Communist" as they claimed to be. There was an alien "spacecraft" hovering invisibly above the grassy field; oh no, it was some kind of "portal"; oh no, it was an "incorporeal being." Many East Asian logograms, or "Sinograms," had a categorizing radical along with a hinting phonetic radical; they were not all pictographic. Daoists, I said, liked to be like a simple driftwood. There were aliens aplenty, Bratislav repeated. That day on the field last month, the thousands of dandelions were abundant with cloudy tufts of their soon-to-fly seeds.

Source: tatoeba (10696230)

In the last twenty years, partly due to Carpenter's innovations, strong new forms of glass have been developed that can be used as a structural material, whether for staircases, walkways or walls — transparent walls that admit sunlight, but are coated invisibly to keep out too much heat.

Source: tatoeba (12179739)

Do you have scientific evidence that an invisibly small teapot isn't orbiting the earth?

Source: tatoeba (13027389)

These beings have some very extraordinary and useful properties; they can, for instance, go about invisibly, or turn themselves into any shape; they can foresee future events; they can confer prosperity, or the contrary, on a family[.]

Source: wiktionary