# pertinaciously

> English word · Adverb · IPA /ˌpɜː.təˈneɪ.ʃəs.li/

## Definitions
1. In a stubbornly resolute manner; tenaciously holding one's course of action or opinion.

## Etymology
From pertinacious + -ly, from Latin pertināx, from per- (“very”) + tenāx (“tenacious”), from teneō (“I hold”).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/pertinaciously