Sketchy

a.

1.

Containing only an outline or rough form; being in the manner of a sketch; incomplete. The execution is sketchy throughout; the head, in particular, is left in the rough. - J. S. Harford.

Adj.

1.

sketchy - giving only major points; lacking completeness; "a sketchy account"; "details of the plan remain sketchy" Synonyms: unelaborated

adulterated, arrested, blemished, callow, crude, cursory, damaged, defective, deficient, depthless, embryonic, erroneous, failing, fallible, faulty, found wanting, fuzzy, hasty, hurried, hypoplastic, ill-defined, immature, impaired, imperfect, imprecise, impure, in arrear, in arrears, in default, in short supply, inaccurate, inadequate, indistinct, inexact, infant, lacking, makeshift, mediocre, missing, mixed, needing, not perfect, off, part, partial, patchy, perfunctory, rough, rough-hewn, scant, scanty, scrappy, shallow, short, shy, skimpy, superficial, uncritical, underdeveloped, undeveloped, uneven, unfinished, unperfected, unpolished, unrefined, unsound, unthorough, wanting