a high-waistlined dress

The newer taser delivered a more powerful electric shock to the target than the older one did.

Back in the city's littered bivouac he walked among the tenements of home like an awol private returning to barracks from which his old outfit had long ago convoyed and scattered for keeps.

An unrealized option is then a concrete possibilium, the realization it would have if it were realized. An unrealized event may be a possibilium realized in a nonactual possible world and having concrete features, such as a duration.