pertinacious

1. Holding tenaciously to an opinion or purpose.
2. Stubbornly resolute or tenacious.

Pronounced as (IPA)

/ˌpɜːtɪˈneɪʃəs/

Etymology

From pertinace + -ious, from Old French pertinace, from Latin pertinax, from per- (“very”) + tenax (“tenacious”).

Synonyms

dogged

stubborn

tenacious

persistent

obstinate

persevering

unyielding

willful

ambitious

wilful

ardent

refractory

insistent

dour

importunate

eager

opinionative

pertinaciously

adamantine

pigheaded

purposeful

stiff-necked

stubbornly

tough

unswerving

wrongheaded

unsubmissive

self willed

self opinionated

strongheaded

perverse

besetting

bulldog

confirmed

contumacious

determined

doggedly

do-or-die

hardheaded

headstrong

hidebound

intractable

mischievous

naughty

obstinately

opinionated

Translations

obstiné

tenace

hartnäckig

pertinaz

opiniâtre

vasthoudend

têtu

inatçı

pertinace

azimli

επίμονος

farouchement

tenaç

bouledogue

acharné