as in stubborn
sticking to an opinion, purpose, or course of action in spite of reason, arguments, or persuasion a pertinacious salesman who would simply not take "No!" for an answer

Synonyms & Similar Words

Antonyms & Near Antonyms

Synonym Chooser

How is the word pertinacious distinct from other similar adjectives?

Some common synonyms of pertinacious are dogged, mulish, obstinate, and stubborn. While all these words mean "fixed and unyielding in course or purpose," pertinacious suggests an annoying or irksome persistence.

a pertinacious salesclerk refusing to take no for an answer

When can dogged be used instead of pertinacious?

The synonyms dogged and pertinacious are sometimes interchangeable, but dogged suggests an admirable often tenacious and unwavering persistence.

pursued the story with dogged perseverance

In what contexts can mulish take the place of pertinacious?

In some situations, the words mulish and pertinacious are roughly equivalent. However, mulish implies a thoroughly unreasonable obstinacy.

a mulish determination to have his own way

When is it sensible to use obstinate instead of pertinacious?

While the synonyms obstinate and pertinacious are close in meaning, obstinate implies usually an unreasonable persistence.

an obstinate proponent of conspiracy theories

When would stubborn be a good substitute for pertinacious?

Although the words stubborn and pertinacious have much in common, stubborn implies sturdiness in resisting change which may or may not be admirable.

a person too stubborn to admit error


Thesaurus Entries Near pertinacious

Cite this Entry

“Pertinacious.” Thesaurus, Merriam-Webster, Accessed 22 Feb. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!