Dictionary and Thesaurus

Definition of Pertinacious

• (a.) Holding or adhering to any opinion, purpose, or design, with obstinacy; perversely persistent; obstinate; as, pertinacious plotters; a pertinacious beggar.
• (a.) Resolute; persevering; constant; steady.

Synonyms of Pertinacious

• Dogged
• Dour
• Persistent
• Tenacious
• Unyielding

Antonyms of Pertinacious

Homophones of Pertinacious