nandai
1. difficult problem; challenge
★ Common
Noun
#32508
1. difficult problem; challenge
1. It's not a difficult problem.; It's not a hardship.
1. It wasn't a difficult problem.; It wasn't a hard question.
1. If it's a difficult problem; If it’s challenging
1. If it's a difficult question; When it's a difficult question
1. Probably a difficult problem.; It will likely be challenging.
1. It's not a difficult problem.; It's not a big deal.
1. Was not a difficult problem.; Was not a challenge.
1. If it's a difficult problem; When it's a difficult problem
1. It was a difficult problem.; It was a tough question.