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fiendish

adj
/ˈfiːndɪʃ/

Etymology

From fiend + -ish.

  1. derived from *peh₁-✻
  2. inherited from *fijandz✻
  3. inherited from *fijand✻
  4. inherited from fēond — “enemy”
  5. inherited from fend
  6. suffixed as fiendish — “fiend + ish”

Definitions

  1. Sinister

    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.

  2. Very difficult.

    • The exam was filled with fiendish questions that made no sense.
    • a fiendish crossword puzzle

The neighborhood

Vish — recursive loop

No curated loop yet for fiendish. Loops are being traced one word at a time while the ingestion pipeline matures.

sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA