Meaning: This adjective refers to showing great care, attention, and effort. If you are assiduous in your actions, it is implied that you are in it for the long haul, or that you can “sit with” a task or challenge for a considerable time.
Origin: This word is derived from the Latin verb assidere, meaning “to sit beside.”
Usage: They were assiduous in their search for all the latest facts and figures.
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