Lewis & Short

sēmĭ-perfectus, a, um, adj. [perficio], half-finished.

  1. I. Lit.: opera absolvit, Suet. Calig. 21; Ambros. Spirit. Sanc. 3, 14, 18.
  2. II. Trop.: virtutes, half-perfect, incomplete, App. Dogm. Plat. 2, p. 17, 24.