hardest
Translation
most difficult, most solid
Examples
This is the hardest exam I've ever taken.
This is the most difficult exam I've ever taken.
Diamond is the hardest natural substance.
Diamond is the most solid natural substance.
Grammar Patterns
the hardest ((noun)) the most difficult/solid ((noun)) It was the hardest decision.
Similar Words
Synonyms: toughest, most difficult; Antonyms: easiest, softest
Etymology
From the adjective 'hard' plus the superlative suffix '-est'.
Memory Tips
Think of the 'hardest' level in a video game.