Letters that make unpermissive
s, e, n, p, m, r, i, u, v are letters that make 'unpermissive'
Words within unpermissive
ER, perm, Miss, missive, pe, mi, si, miss, UN, MI, NP, SI, SS, permissive, iv, IV, Perm, Er, Np, Si are words within 'unpermissive'