toughy
/ˈtʌfi/
noun
- A difficult problem or situation.
- The final exam had a few toughies that stumped everyone.
- That math problem was a real toughy.
- Deciding which job to take is a toughy.
- A person who is strong, determined, or hard to defeat.
- In the boxing ring, he was known as a toughy.
- She's a toughy who never gives up, even when things get hard.
- Don't underestimate that little dog—he's a real toughy.
Antonyms