[sed.u.lous] adj [L sedulus, fr. sedulo sincerely, diligently, fr. se without + dolus guile--more at suicide] (1540) 1: involving or accomplished with careful perseverance "~ craftsmanship"
2: diligent in application or pursuit "a ~ student" syn see busy -- sed.u.lous.ly adv -- sed.u.lous.ness n