adjective (a)

• not exacting in nutritional requirements(adj.all)

  Antonym:
  exacting, fastidious
  

  source: wordnet30
• marked by an absence of due or proper care or attention to detail; not concerned with cleanliness(adj.all)

  Example:
  Unfastidious in her dress.
  

  Antonym:
  fastidious
  

  source: wordnet30