Antonyms of adj picky

1 sense of picky

Sense 1
finical, finicky, fussy, particular, picky -- (exacting especially about details; "a finicky eater"; "fussy about clothes"; "very particular about how her food was prepared")

INDIRECT (VIA fastidious) -> unfastidious -- (marked by an absence of due or proper care or attention to detail; not concerned with cleanliness; "unfastidious in her dress")

Similarity of adj picky

1 sense of picky

Sense 1
finical, finicky, fussy, particular, picky -- (exacting especially about details; "a finicky eater"; "fussy about clothes"; "very particular about how her food was prepared")
       => fastidious (vs. unfastidious) -- (giving careful attention to detail; hard to please; excessively concerned with cleanliness; "a fastidious and incisive intellect"; "fastidious about personal cleanliness")