Intensely; strongly.

(law, of a defendant) Exempt from the payment of debts, either because of insufficient funds or because of protection by statute.

airtight

A fallacious judgment that, because a premise cannot be proven true, that premise must be false.

(logic) A logical fallacy consisting of providing one or more examples as a proof of a more general statement.

Resistant to rabbits.

Alternative spelling of ovenproof

(informal, humorous) Incapable of being misused even by the most stupid or careless of users.

To render something idiot-proof.

A very early proof impression of an engraving, etc., often distinguished by the artist's signature.