punctilious

Otherwise, slavish adaptations–being, punctiliously observant adaptations–are likely to be a dead doornail.
Mr. Darcy Comes Out|Nicole LaPorte|September 16, 2009|DAILY BEAST
Again, at the door of Room 18, he punctiliously allowed her to precede him.
Little Aliens|Myra Kelly
"We are too punctiliously foolish," Prime declared when the second meal without its tobacco aftermath had been endured.
Stranded in Arcady|Francis Lynde
Ceremonious etiquette and detail duties were punctiliously observed.
Mexico|Susan Hale

She was punctiliously exact in her observance of all appointments and prompt to the minute in meeting those appointments.
The Mother of Washington and Her Times|Sara Agnes Rice Pryor
First they are punctiliously polite and request information.
Adventures in Swaziland|Owen Rowe O'Neil

British Dictionary definitions for punctiliously

punctilious

/ (pʌŋkˈtɪlɪəs) /

adjective

paying scrupulous attention to correctness in etiquette

attentive to detail

Derived Forms

punctiliously, adverbpunctiliousness, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012