1. pertinacious - Adjective
2. pertinacious - Adjective Satellite
Holding or adhering to any opinion, purpose, or design, with obstinacy; perversely persistent; obstinate; as, pertinacious plotters; a pertinacious beggar.
Resolute; persevering; constant; steady.
Source: Webster's dictionarydogged persistence Source: Internet
dour determination Source: Internet
the most vocal and pertinacious of all the critics Source: Internet
a mind not gifted to discover truth but tenacious to hold it Source: Internet
men tenacious of opinion Source: Internet