Did you know?

Click any word in a definition or example to find the entry for that word

American pronunciation of 


view main entry for pertinacious adjective  /ˌpɜrtɪˈneɪʃəs/
Click to listen to the pronunciation of pertinacious

derived word


  /ˌpɜrtɪˈnæsəti/ noun [uncountable]
Click to listen to the pronunciation of pertinacity

This is the American English pronunciation of pertinacious.

View British English pronunciation of pertinacious.

Previous and next

Open Dictionary


the activity of exploring abandoned buildings and other manmade structures

add a word


A must for anyone with an interest in the changing face of language. The Macmillan Dictionary blog explores English as it is spoken around the world today.

global English and language change from our blog
Macmillan learn live love play