Antonym of DEFICIT

Deficit : the amount by which something, especially a sum of money, is too small.
Superfluous : unnecessary, especially through being more than enough.
Surplus : an amount of something left over when requirements have been met; an excess of production or supply.
Explicit : stated clearly and in detail, leaving no room for confusion or doubt.
Implicit : suggested though not directly expressed.

Antonym of Deficit is Surplus