Definition

The quality of being unable to be defeated or annulled; it refers to something that cannot be overturned or invalidated.

Example

The indefeasibility of her rights was recognized by the court.

Conversation

Have you ever thought about the indefeasibility of our friendship?

Yeah, it's pretty amazing how strong it is, no matter what happens.

Exactly! I feel like nothing could ever break that bond.

I agree — it's comforting to know we have that indefeasibility in our lives.

Synonyms & Antonyms

Root Explanation

Indefeasibility is formed from "in-" (meaning not) and "defeasibilis" (from Latin, meaning able to be annulled or defeated) and the suffix "-ity" (meaning the state or condition of). The word refers to the state of being not able to be annulled or defeated, often used in legal contexts to describe rights or titles that cannot be invalidated.

Memory Tip

Think of 'not' ('in-') being able to be 'defeated' ('defeasibilis') — that's why indefeasibility means a state that cannot be undone.

Visually Confused Words