Definition

In a way that cannot be annulled or made void; permanently or unchangeably.

Example

The rights granted to the citizens are indefeasibly protected by the constitution.

Conversation

I really believe that our friendship is indefeasibly strong.

Absolutely! We've been through so much together.

It's great to know we can always count on each other indefeasibly.

For sure! That makes life a lot easier, doesn't it?

Synonyms & Antonyms

Root Explanation

Indefeasibly is formed from "in-" (meaning not) and "defeasible" (from Latin "defeasibilis", meaning capable of being undone or annulled). The word means not capable of being undone or annulled, indicating something that is permanent or unassailable.

Memory Tip

Think of 'not' ('in-') being able to 'undo' something ('defeasible') — that's why indefeasibly means something that cannot be undone.

Visually Confused Words