dotting the i's

accurate cautious conscientious exact fastidious fussy painstaking precise scrupulous strict thorough

detail-oriented

conscionable crossing the t's heedful microscopic nitpicking particular persnickety picky punctilious punctual stickling

careless false imprecise inaccurate indefinite inexact negligent questionable thoughtless uncareful uncritical undemanding unscrupulous

messy sloppy undetailed