Providing no difficulty
(Adjective)
Synonyms:
  1. easy
  2. simple
  3. facile
  4. a breeze
  5. easily done
  6. a snap
  7. duck soup
  8. easy-as-abc
  9. like-taking-candy-from-a-baby
  10. easy-as-pie
  11. effortless
  12. piece-of-cake