Definition

In a way that shows great effort and never gets tired; always working hard without stopping.

Example

She worked indefatigably on her project, putting in long hours every day.

Conversation

I admire how you work on your projects so indefatigably.

Thanks! I just really enjoy what I do.

It shows! Your passion really keeps you going.

Yeah, I believe in giving it my all, no matter what.

Synonyms & Antonyms

Root Explanation

Indefatigably → It is formed from "in-" (meaning not), "defatigabilis" (from Latin "defatigare", meaning to tire out), and "-ly" (meaning in a manner). The word "indefatigably" means in a manner that is not able to be tired out, or persistently without fatigue.

Memory Tip

Think of 'not' being able to be 'tired out' — that's why indefatigably means doing something persistently without getting tired.

Visually Confused Words