Arduous
Adjectiveकठिन, कठोर
Definition
Involving or requiring strenuous effort; difficult and tiring
Contextual Sentence: "The arduous trek up the mountain took the explorers two days to complete."
💡 Memory Hook (Mnemonic): Sounds like 'hard to do' – something that requires hard work.
Synonyms
taxing
laborious
onerous
Antonyms
easy
effortless
simple