Definitions of meanly:

• adverb:   in a miserly manner

  Example: "They lived meanly and without ostentation"

• adverb:   poorly or in an inferior manner

  Example: "Troops meanly equipped"

• adverb:   in a despicable, ignoble manner

  Example: "This new leader meanly threatens the deepest values of our society"

• adverb:   in a nasty ill-tempered manner