pertinacious Meaning, Definition & Usage

  1. adjective satellite stubbornly unyielding
    tenacious; dour; dogged; persistent; unyielding.
    • dogged persistence
    • dour determination
    • the most vocal and pertinacious of all the critics
    • a mind not gifted to discover truth but tenacious to hold it"- T.S.Eliot
    • men tenacious of opinion

WordNet

Per`ti*na"cious adjective
Etymology
L. pertinax, -acis; per + tenax tenacious. See Per-, and Tenacious.
Definitions
  1. Holding or adhering to any opinion, purpose, or design, with obstinacy; perversely persistent; obstinate; as, pertinacious plotters; a pertinacious beggar.
  2. Resolute; persevering; constant; steady.
    Diligence is a steady, constant, and pertinacious study. South.
    Syn. -- Obstinate; stubborn; inflexible; unyielding; resolute; determined; firm; constant; steady. -- Per`ti*na"cious*ly, adv. -- Per`ti*na"cious*ness, n.

Webster 1913