ineffectively — not effective; not producing results; ineffectual: ineffective efforts; ineffective remedies.
ineffectually — not effectual; without satisfactory or decisive effect: an ineffectual remedy.
inefficiently — not efficient; unable to effect or achieve the desired result with reasonable economy of means.
ineptly — without skill or aptitude for a particular task or assignment; maladroit: He is inept at mechanical tasks. She is inept at dealing with people.
meagerly — deficient in quantity or quality; lacking fullness or richness; scanty; inadequate: a meager salary; meager fare; a meager harvest.
partly — in part; to some extent or degree; partially; not wholly: His statement is partly true.
perfunctorily — performed merely as a routine duty; hasty and superficial: perfunctory courtesy.
scantily — scant in amount, quantity, etc.; barely sufficient.