adverb (r)

• not in a forthright manner(adv.all)

  Example:
  He answered very indirectly.
  

  Antonym:
  directly, flat, straight
  

  source: wordnet30
• In an direct manner; not in a straight line or course; not in express terms; obliquely; not by direct means; hence, unfairly; wrongly.(adverb)

  source: webster1913