Part of speech: adjective
Origin: Latin, mid 16th century
Showing exceptional effort and perseverance
Meticulous and diligent
Constant or incessant
Examples of Assiduous in a sentence
"Her assiduous attention to detail in her work helped her land the big promotion."
"He is an assiduous housecleaner—he doesn't leave a single surface untouched."
Getting down on your hands and knees to scrub away the grime in your house is certainly an assiduous behavior, but recent trends have indicated that many people want to keep their cleaning routines easy. Cleaning "hacks" — effective ways to clean something with unexpected tools, often including what you already have around — are a hugely popular trend in the lifestyle blogosphere.
Did you Know?
Assiduous can be used in a variety of ways, and that's true all the way back to its roots. This word can be traced back to the Latin assiduus, which had many meanings, ranging from "to sit near" to "to be engaged in doing something."