Antonyms of adj punctilious

1 sense of punctilious

Sense 1
meticulous, punctilious -- (marked by precise accordance with details; "meticulous research"; "punctilious in his attention to rules of etiquette")

INDIRECT (VIA precise) -> imprecise -- (not precise; "imprecise astronomical observations"; "the terms he used were imprecise and emotional")

Similarity of adj punctilious

1 sense of punctilious

Sense 1
meticulous, punctilious -- (marked by precise accordance with details; "meticulous research"; "punctilious in his attention to rules of etiquette")
       => precise (vs. imprecise) -- (sharply exact or accurate or delimited; "a precise mind"; "specified a precise amount"; "arrived at the precise moment")