It's a highly unnatural approach to the mind/body problem, pretty much the antithesis of every sixties and seventies-tinged philosophy that he ever imbibed from his Baby Boomer elders.

I'm anxious to find out more about that highly unnatural satellite.

An independent pronoun may occasionally be placed in theme position for emphasis, but a series of independent pronouns in theme position would be highly unnatural.

Or should they accept an Earth environment uncomfortable and highly unnatural to the ambassador and staff?

For a keen photographer to part with an original would be a highly unnatural act.

Those who prefer folk or blues singers find the operatic voice itself, even unamplified, to be highly unnatural.

Everything else was dyed a highly unnatural color or plucked, cut apart and loomed with fabrics or other furs.

Seems highly unnatural to me that Mr Drybeck should never have mentioned the matter to the Squire, and that he didn't I'm quite satisfied.

In the first place, today animals are often intensively reared, housed indoors under what are, for them, highly unnatural conditions.

With its sky of chartreuse hovering over curving strokes of different oranges, "Stalker" suggests a highly unnatural seascape.