Adjectives

(a)meager, meagre, meagerly, stingy, scrimpydeficient in amount or quality or extent“meager resources”, “meager fare”

Adverbs

(r)meagerly, sparingly, slenderly, meagrelyto a meager degree or in a meager manner“these voices are meagerly represented at the conference”, “the area is slenderly endowed with natural resources”