Antonyms for the word "most finicking" include terms such as "careless," "sloppy," and "negligent." These words have the opposite meaning of "finicking," which refers to someone who is incredibly particular or fussy about details. While finicking individuals strive for perfection and pay close attention to the smallest intricacies, those who are careless or negligent are more likely to overlook important details and make mistakes. Additionally, other antonyms for "most finicking" include "casual," "lax," and "indifferent," all of which denote a lack of concern or attention to detail.