* Formal: The company's dress code was punctilious, requiring employees to wear suits and ties.
* Descriptive: He was a punctilious host, making sure every guest felt welcome and comfortable.
* Humorous: She was so punctilious about grammar that she even corrected the spelling of the restaurant menu.
* Contrast: Despite the chaotic atmosphere, the general remained punctilious in his military bearing.
Let me know if you'd like more examples or want me to tailor a sentence to a specific context!