punctiliousness n strict attention to minute details Usage(s) The most spectacular example of this new punctiliousness is the case of Robert Massie, author of the 1967 bestseller Nicholas and Alexandra. Then, with equal punctiliousness, she pays some boys to give her car a push so that she can sail off a cliff in it. But this punctiliousness, this refusal to inflate, grants it a large measure of persuasive power. Synonym(s) meticulousness meticulosity scrupulousness