fiendish

1. Sinister; evil; like a fiend.

   The detective was puzzled by the fiendish plot to steal the diamonds.

   She had a fiendish smile that hinted at a cunning plan.

   teuflisch

   дья́вольскийdʹjávolʹskij

2. Very difficult.

   The exam was filled with fiendish questions that made no sense.

   a fiendish crossword puzzle

1. What a fiendish trick!

   CC BY · Tatoeba · CK · C1Open on TatoebaReport a problem

2. What a fiendish plan!

   deWas für ein teuflischer Plan!

   CC BY · Tatoeba · CK · C1Open on TatoebaReport a problem

3. I have come to warn you of a fiendish plot.

   ruЯ пришёл предупредить вас о дьявольском заговоре.

   CC BY · Tatoeba · ddnktr · C1Open on TatoebaReport a problem

4. Tom is acting fiendish.

   CC0 · Tatoeba · shekitten · C1Open on TatoebaReport a problem

5. He's feeling rather fiendish.

   CC BY · Tatoeba · letsgolanguages · C1Open on TatoebaReport a problem

regular