per·mis·sive 
(pər-mĭsĭv)
(pər-mĭsĭv)adj.
1.
a. Granting or inclined to grant permission; tolerant or lenient: permissive parents.
b. Characterized by freedom of personal behavior or a disregard of traditional social mores.
2. Permitted or optional: permissive uses of funds.
3. Biology Supporting viral replication. Used of a cell.
per·missive·ly adv.
per·missive·ness n.