Definition

The condition of not being valid or acceptable; a state where something is not recognized as true or legitimate.

Example

The invalidity of the contract meant that it could not be enforced in court.

Conversation

I heard they rejected his application due to its invalidity.

Really? That seems a bit harsh.

Yeah, it makes me wonder how they determine invalidity in those cases.

It can be confusing; sometimes small mistakes lead to big consequences.

Synonyms & Antonyms

Root Explanation

Invalidity → It is formed from "in-" (meaning not) and "validus" (meaning strong or effective) and the suffix "-ity" (meaning the state or condition of). The word "invalidity" refers to the state of being not valid or not effective.

Memory Tip

Think of 'not strong' ('in-' means not and 'validus' means strong) to remember that 'invalidity' means the condition of being not valid.

Visually Confused Words