ADJECTIVE (2)

1. not exacting in nutritional requirements;

2. marked by an absence of due or proper care or attention to detail; not concerned with cleanliness;
- Example: "unfastidious in her dress"

WordNet (r) 3.0 (2006):

unfastidious
    adj 1: not exacting in nutritional requirements [ant:
           exacting, fastidious]
    2: marked by an absence of due or proper care or attention to
       detail; not concerned with cleanliness; "unfastidious in her
       dress" [ant: fastidious]