Definition of Arduous: Arduous (adjective): Involving or requiring strenuous effort; difficult and tiring. Synonyms: difficult, hard, laborious, strenuous Antonyms: easy, effortless, simple, straightforward Memory Tip: Think of “arduous” as describing a task or journey that is so tough it makes you sweat just thinking about it. Conversation and Short Story Examples Here is how “arduous”…