UNPROSPEROUS
a.Not prosperous; not attended with success; unfortunate.
UNPROSPEROUSLY
adv. Unsuccessfully; unfortunately.
UNPROSPEROUSNESS
n.Want of success; failure of the desired result.
unprosperous
un pros per ous |ˌənˈpräspərəs ənˈprɑspərəs | ▶adjective rare not enjoying or bringing financial success.
un |pros ¦per ¦ous |ʌnˈprɒsp (ə )rəs | ▶adjective not enjoying or bringing financial success.