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Definitions

punctilious

[puhngk-til-ee-uhs] / pʌŋkˈtɪl i əs /
ADJECTIVE
careful, finicky
Synonyms
WEAK
ceremonious conscientious conscionable conventional exact formal formalistic fussy good eye heedful meticulous nice observant overconscientious overscrupulous painstaking particular persnickety precise proper punctual right on scrupulous strict
Antonyms
WEAK
careless easygoing informal uncaring

Frequently Asked Questions

What is another word for punctilious?
People described as punctilious do things (or require things to be done) exactly according to the rules or in a particular or traditional way—the one they consider proper. Such people may be described as strict, rigid, inflexible, or fussy. Strict implies close adherence to rules. Rigid and inflexible imply that a person isn’t willing to change the way they do things. Fussy is a more negative way of saying someone is particular—that they want things done in an exact way. All of these words are less formal than punctilious. An even less formal but more negative term is persnickety, which can suggest that someone is annoyingly particular, often in a way that’s snobby. A more formal synonym that can mean just about the same thing is scrupulous, but scrupulous is more commonly used to mean principled or devoted to doing what is right.  
Is punctilious a bad word?
Punctilious isn’t necessarily negative in itself—it really depends on how you feel about punctiliousness. Describing someone as punctilious could even be intended as a compliment. But more often than not, it’s intended to imply that a person’s strictness and attention to rules is excessive (and irritating). For this reason, punctilious is sometimes used as kind of a polite way of saying something that’s usually negative.
Is it better to be punctual or punctilious?
A punctilious person might insist on being punctual—and especially on other people being punctual—but the two words mean different things. Punctual is much more narrow—it means to be on time, which is generally viewed as a good thing. And the word itself is typically used in a positive or neutral way. Being punctilious, on the other hand, is often viewed unfavorably. A punctilious person might answer that it’s better to be punctilious, since that probably includes being punctual. But, in general, it’s probably better to be described as punctual than it is to be called punctilious, since punctual is never used negatively.
What is an antonym (opposite) of punctilious?
Punctilious has a direct opposite, unpunctilious, which simply means not punctilious. It often implies that the person it’s describing should be a little more punctilious. There aren’t many single words that exactly capture what it means to be the opposite of punctilious, but such a person could be described as easy-going, open-minded, or flexible.
How do you use punctilious in a sentence?
Punctilious is quite a formal word, and can be used to describe someone who is themselves quite formal, or at least strict about formalities. It’s not always an insult, but it’s often used negatively. Here are some examples of punctilious in a sentence:
  • My mother is so punctilious about the state of the house that it seems like she’s expecting the Queen of England to show up!
  • Try not to be so punctilious about the rules—it’s just supposed to be a fun game night.
  • It’s a good thing I’ve been punctilious about my homework, because my teacher is a real stickler!

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

He is the most punctilious of authors—orderly, factual, reasonable and contained.

From The Wall Street Journal • Jan. 16, 2026

By its very nature the justice system is glacial, methodical, punctilious, and backward-looking in ways that make keeping up with the well-resourced, wealthy career criminal supremely challenging.

From Slate • Oct. 25, 2024

And that doesn’t even include the host of honest mistakes that can and do occur filling out the mountains of punctilious paperwork after a 16-hour day.

From Salon • Sep. 15, 2024

He is punctilious, they say, uncompromising when it comes to rules and conduct, and with a heightened concern for morality and codes of conduct.

From Seattle Times • Jul. 4, 2022

Unfortunately, even the most punctilious punctuation is not informative enough to eliminate all garden paths.

From "The Sense of Style" by Steven Pinker

Vocabulary lists containing punctilious

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Grade 10, List 3

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