Definition

Requiring a lot of effort and hard work; difficult to do or achieve.

Example

Climbing the mountain was an arduous task that took several days to complete.

Conversation

Have you ever tried that new hiking trail up the mountain?

Yeah, I did! It was a bit arduous, but worth it.

I heard it takes a long time to finish the whole thing.

Definitely, but the views at the top make the arduous trek so rewarding.

Synonyms & Antonyms

Root Explanation

Arduous → It is derived from the Latin word "arduus" (meaning steep or difficult). The word "arduous" describes something that is hard to accomplish or requires great effort.

Memory Tip

Think of something that is 'steep' or 'difficult' to climb — that's why arduous means hard to do.

Visually Confused Words