In other words, what is the difference between a sale which is void and a sale which is voidable? The distinction between a transaction which is void and one which is only voidable is that if a transaction is void, it is in law a nullity, not only bad, but incurably bad and nothing can be founded on it, for having no life of its own, it cannot vivify anything. But if a transaction is voidable, it has some life and it remains good until set aside. It is here that the rules of equity or natural justice may well be taken into account by the Court in deciding whether it will, at its discretion set the transaction aside or not.
– Oputa, JSC. Adejumo v. Ayantegbe (1989)