skeletal
adjective
[ ˈskɛlɪt(ə)l ]
• relating to or functioning as a skeleton.
• "the skeletal remains of aquatic organisms"
• existing only in outline or as a framework of something.
• "a skeletal plot for a novel"
Similar:
lacking in detail,
incomplete,
outline,
inadequate,
insufficient,
fragmentary,
sketchy,
patchy,
bitty,
scrappy,
broad-brush,
superficial,
perfunctory,
thumbnail,