困難
【こんなん】

difficulty[U][C];（苦労）trouble[U][C];（苦難）hardship[U][C]
━━困難な
difficult; hard, tough
*困難な問題　a difficult problem / 様々な困難に打ち勝つ　｢get over [overcome] various difficulties / 困難に陥る　get into difficulties
*彼女は困難に直面しても勇気をもって立ち向かった　Even when she encountered a difficulty, she faced it with bravery.
*その会社は困難な状況にある　The company is in a difficult [tough] situation.
*この本の初版は今や入手困難である　The first edition of this book is now difficult to obtain.
*戦時中人々は多くの困難に耐えなければならなかった　People had to bear [put up with] many hardships during the war.

東京書籍 「アドバンスドフェイバリット和英辞典」 JLogosID : 7686405