a. | 1. | Holding or adhering to any opinion, purpose, or design, with obstinacy; perversely persistent; obstinate; |
2. | Resolute; persevering; constant; steady. |
Adj. | 1. | pertinacious - stubbornly 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" |