Letters that make imperfectible
b, e, f, l, p, c, m, r, t, i are letters that make 'imperfectible'
Words within imperfectible
ER, RF, pe, ti, EC, MP, perfect, imperfect, perfectible, ECT, CT, TiB, imp, LE, Er, Fe, Rf, Ti are words within 'imperfectible'