Per`ti*na"cious (?), a.[L.
pertinax, -acis; per + tenax tenacious. See
Per-, and Tenacious.] 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.