Synonyms for No piece cake:

• adj.

  •tough (adjective)
  • taxing,
  • troublesome,
  • heavy,
  • oppressive,
  • wicked,
  • unyielding,
  • exigent,
  • labored,
  • Irksome,
  • exacting,
  • thorny,
  • knotty,
  • no piece of cake,
  • severe,
  • puzzling,
  • stiff,
  • uphill,
  • mean,
  • exhausting,
  • grievous,
  • arduous,
  • intricate,
  • Resisting,
  • trying,
  • toilsome,
  • intractable,
  • weighty,
  • burdensome,
  • onerous,
  • hard,
  • effortful,
  • demanding,
  • perplexing,
  • strenuous,
  • handful,
  • backbreaking,
  • baffling.

Antonyms for No piece cake:

• adj.

  • tough
    easy, controllable, facile.