unexuberant

Ever since the sub-prime mortgage crisis hit, the rationally unexuberant have been predicting what economists delicately call a "market correction."

John Feffer: Wall Street, Coffee, and Irrational Exuberance 2008

But it was evident that the boy was putting a devastating strain upon an unexuberant and tardy wit when he endeavoured to ascribe to it a literary rendering.

The Confessions of a Beachcomber 2003

Besides, what son of the soil would want her: unexuberant, delicate, pleasant in strange ways, and foreign to all familiar things?

The Best Short Stories of 1920 and the Yearbook of the American Short Story Various 1915

But it was evident that the boy was putting a devastating strain upon an unexuberant and tardy wit when he endeavoured to ascribe to it a literary rendering.

Confessions of a Beachcomber 1887