Anagrams of: UNPERMISSIVE

• making a strong or vivid impression

• producing a strong effect

• not preventive

• granting or inclined or able to grant permission; not strict in discipline

• watch and direct

• keep tabs on; keep an eye on; keep under surveillance

• the condition of being impure

• A small motor car, especially a hatchback, which is powerful for its size or class

• A superminicomputer

• Of, pertaining to, or having the capacity to emit radiation or matter; emitting

• warn in advance or beforehand; give an early warning

• realize beforehand

• Any viper of the subfamily Viperinae

• Of, relating to or resembling a viper