Answer: diligent

AnswerCrossword Clue
DILIGENTAssiduous
DILIGENTPainstaking
DILIGENTPainstaking.
DILIGENTUnlike a slacker
DILIGENTSedulous
DILIGENTPersevering
diligentpersevering
diligentconstant in effort to accomplish something; attentive and persistent in doing anything
diligentdone or pursued with persevering attention; painstaking