The meaning of Pertinacy and additional information.

Pertinacious(a.) Holding or adhering to any opinion, purpose, or design, with obstinacy; perversely persistent; obstinate; as, pertinacious plotters; a pertinacious beggar.

Pertinacious(a.) Resolute; persevering; constant; steady.

Pertinacy(n.) The quality or state of being pertinent; pertinence.