Definition

Something that cannot be changed or undone once it has been decided or done.

Example

Once she signed the contract, her decision was irrevocable.

Conversation

I just made an irrevocable decision about my career.

Oh really? What did you decide?

I’m moving to another city for a new job, and I can't go back now.

That sounds exciting, but I hope you're ready for the change!

Synonyms & Antonyms

Root Explanation

Irrevocable → It is formed from "in-" (meaning not) and "revocare" (meaning to call back or revoke). The word "irrevocable" means not able to be called back or undone, indicating a decision or action that cannot be reversed.

Memory Tip

Think of something that cannot be 'called back' ('revocare') — the 'in-' means not, so 'irrevocable' describes something that is permanent and cannot be undone.

Visually Confused Words