Sedulous – Careful and using a lot of effort; diligent and persistent

(Pronounced sed-uh-luhs)

To remember the definition of the word sedulous, use the following mnemonic:

You said you could last (sedulous) a long time with a bit of care and effort, and you did!

Examples of  sedulous in a sentence

She was a sedulous lawyer and was notorious for never losing a case. 

They continued their sedulous efforts, hoping that one day they would be the most successful restaurant chain in the country.

The thieves were sedulous with their planning of the heist, but it wasn't enough to prevent them being caught.