Consider this list: diligent, careful, meticulous, thorough, assiduous, attentive, industrious, conscientious, ultracareful, punctilious, scrupulous, painstaking, minute, rigorous, particular.
It sounds like the description of an entirely different variety of boy scouts, ones perhaps who never joined an organization because they never entirely got through with reading the dictionary.
But who can blame them? Have you seen the size of the S section alone?
So, the SStudious dictionary requires Sscrupluous Sselective Sself Sstudy?