elusive

There's the good girl leading a charmed life who secretly covets to be the rare and elusive femme fatale and the femme fatale who yearns to be good and then there is their nemesis - men who dream and desire both.

When I finally lie down, I find sleep elusive. The same thoughts that trouble me during the day are only compounded by the stillness of night.

Depression is a disorder of mood, so mysteriously painful and elusive in the way it becomes known to the self--to the mediating intellect--as to verge close to being beyond description. It thus remains nearly incomprehensible to those who have not experienced it in its extreme mode, although the gloom, "the blues" which people go through occasionally and associate with the general hassle of everyday existence are of such prevalence that they do give many individuals a hint of the illness in its catastrophic form.

The charm of fishing is that it is the pursuit of what is elusive but attainable, a perpetual series of occasions for hope.

....Love is not only wired, but elusive too.

Obviously the raven with the unquenchable itch was at it again, playing tricks on the world and its creatures. Once by air, he thought, and now by water.