1600-1700punctilio ‘detail of good behavior’(16-21 centuries), from Italianpuntiglio, from Spanishpuntillo, from Latinpunctum; ➔ POINT1
Examples
EXAMPLES FROM THE CORPUS
A punctilious attention to prayers and strict religious observance would win their indulgence.
Careless in some situations, in others he proved punctilious.
Certainly, some of the claims they advanced were extreme even by the standards of so punctilious an age.
Darwin was himself something of a gourmet, also punctilious in his insistence that ties were obligatory.
He had his team and he was too punctilious not to share his thinking with them.
He used words handsomely, though he may have been too careful with them, a little too punctilious.
He was a punctilious blighter and I can't see him using the Lab as a convenient place for a rendezvous.
No denying the boy was dutiful and punctilious in all things, however opinionated he might be.
very careful to behave correctly and follow rulespunctilious about Joe was always punctilious about repaying loans.—punctiliously adverb—punctiliousness noun [uncountable]