nullity — English Dictionary

Noun

1. The state of being null, or void, or invalid.

   Usage

   • Countable
   • Uncountable

   Examples

   nullity of marriage

2. A void act; a defective proceeding or one expressly declared by statute to be a nullity.

   Usage

   • Countable
   • Uncountable

3. The dimension of the kernel of a linear transformation; the dimension of the nullspace of a matrix.

   Usage

   • Countable
   • Uncountable

Noun

1. the state of nonexistence

   Synonyms

   nothingnessvoidnihility

   Broader terms

   nonexistencenonentity

2. something that is null (especially an enactment that has no legal validity)

   Broader terms

   actenactment