Webster's 1913 Dictionary
SKETCHILY
SKETCHILY Sketch "i *ly, adv.
Defn: In a sketchy or incomplete manner. "Sketchily descriptive. " Bartlett.
American Oxford Thesaurus
sketchily
sketchily adverb investors will want to know more than this sketchily described plan: perfunctorily, cursorily, incompletely, patchily, vaguely, imprecisely; hastily, hurriedly.
Oxford Thesaurus
sketchily
sketchily adverb this idea is only sketchily outlined in the prologue: perfunctorily, cursorily, superficially, scantily, skimpily; incompletely, imperfectly, patchily, scrappily; vaguely, imprecisely, roughly, crudely; hastily, hurriedly, in a hurry. ANTONYMS thoroughly, exhaustively, fully.
The Wordsmith Dictionary