Nullity (noun)

1. The state or condition of being legally or officially invalid or having no legal force or effect.
2. The state or condition of being nonexistent or having no value or worth.

Origin:

The word nullity comes from the latin word "nullus", meaning "none" and it refers to the state or condition of being legally or officially invalid or having no legal force or effect. it is also used to describe the state or condition of being nonexistent or having no value or worth.

Examples:

1. The contract was declared a nullity.
2. The marriage was annulled on the grounds of nullity.
3. The court declared the will a nullity.
4. The argument was a nullity.
5. The company was declared a legal nullity.