rarer

People on this island are mostly shipwrecked or in rarer cases, air crash survivors (no similarity to Lost).

Superhero Nation: how to write superhero novels and comic books » Avi’s Forum 2009

Even rarer is his authentic aesthetic commitment to tradition and experimentation.

Jewish MusicFest Opener, Andy Statman- Bluegrass, Jazz and Klezmer « The Blog at 16th and Q 2009

Usually, vintage prints are rarer, and rarer is almost always better in the art market.

Too Much of a Good Thing 2003

Usually, vintage prints are rarer, and rarer is almost always better in the art market.

Too Much of a Good Thing 2003

Possibly the only phrase rarer than “esperanto wonk”.

Flagellum evo -- further discussion - The Panda's Thumb 2007

Possibly the only phrase rarer than “esperanto wonk”.

Flagellum evo -- further discussion - The Panda's Thumb 2007

However, I'd like something more exclusive, rarer, that isn't recognized that easily and that is more personalized.

memoirs on a rainy day 2010

And it is only becoming rarer, which is driving prices up.

Analysis 2010

Unfortunately, my knowledge of these "rarer" or less obvious cases is skimpy...

Ipa ama hen 2010

Relevant surveys prior to 1969 are even rarer—silent testimony to how uncontested the norm of premarital chastity was in the 1950s—but scattered evidence suggests that virtually all the change in the norm came in one burst of liberation in the late 1960s and early 1970s.

American Grace Robert D. Putnam 2010