1
exigent
1
exorbitant
1
extortionate
1
faithful
1
fanatic
1
fanatical
1
fault-finding(mean, irritable, obstinate, crabby, cranky)
1
fireball(adjective, strong, firm, determined, steady)
1
flinty
1
forceful
1
fractious(mean, cross, deliberate, determined, irritable)
1
fretting(mean, cross, irritable, ugly, obstinate)
1
game
1
gamey
1
gamy
1
go-go(adjective, strong, firm, determined, steady)
1
goal-oriented
1
granitic
1
grasping
1
grind(adjective, strong, firm, determined, active)
11 years ago|8k views|share |citing 
APASmart Define. (2015). pertinacious thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/pertinacious/thesaurus/synonyms
ChicagoSmart Define. 2015. "pertinacious thesaurus" https://smartdefine.org/pertinacious/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, pertinacious thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/pertinacious/thesaurus/synonyms>.
MLASmart Define. "pertinacious thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/pertinacious/thesaurus/synonyms>