Improsperousness

Improsperous Im*pros"per*ous, a. [Pref. im- not + prosperous: cf. F. improsp[`e]re, L. improsper.] Not prosperous. [Obs.] --Dryden. -- {Im*pros"per*ous*ly}, adv. [Obs.] -- {Im*pros"per*ous*ness}, n. [Obs.] [1913 Webster]