acting or arriving or performed exactly at the time appointed; "she expected guests to be punctual at meals"; "he is not a particularly punctual person"; "punctual payment"
developed or executed with care and in minute detail; "a detailed plan"; "the elaborate register of the inhabitants prevented tax evasion"- John Buchan; "the carefully elaborated theme"
incapable of failure or error; "an infallible antidote"; "an infallible memory"; "the Catholic Church considers the Pope infallible"; "no doctor is infallible"
characterized by extreme care and great effort; "conscientious application to the work at hand"; "painstaking research"; "scrupulous attention to details"
guided by or in accordance with conscience or sense of right and wrong; "a conscientious decision to speak out about injustice"