(a.) Not finished, not brought to an end; imperfect; incomplete; left in the rough; wanting the last hand or touch; as, an unfinished house; an unfinished picture; an unfinished iron casting.

adulterated amateurish arrested backward blemished coarse crude dabbling damaged defective deficient dilettante dilettantish embryonic erroneous fallible faulty found wanting immature impaired imperfect imprecise impure in embryo in ovo in the rough inaccurate inadequate incomplete inexact jackleg lacking makeshift mediocre mixed neglected not perfect off oversimple partial patchy reductionistic reductive rough roughcast roughhewn rude rudimental rudimentary semiskilled short simplistic sketchy stunted unaccomplished unachieved unattained unblown unbusinesslike uncoached uncompleted unconsummated uncultivated uncultured uncut underdeveloped undeveloped undischarged undone undressed unendowed uneven unexecuted unfashioned unformed unfulfilled ungifted unhewn uninitiated unlabored unlicked unperfected unperformed unpolished unprepared unprimed unprocessed unprofessional unrealized unrefined unschooled unskilled unsound untalented untaught unthorough untrained untreated untutored unworked unwrought wanting