Akademik

per|ti|na|cious

per|ti|na|cious «_PUR tuh NAY shuhs», adjective.

1. holding firmly to a purpose, action, or opinion; very persistent; resolute: »a pertinacious beggar. A bulldog is a pertinacious fighter.
SYNONYM(S): determined, dogged, stubborn.

2. stubborn to excess; obstinate.

3. obstinately or persistently continuing; not yielding to treatment: »a pertinacious cough.

╂[< Latin pertināx, -ācis firm (with English -ous) < per- (intensive) + tenāx, -ācis tenacious]

–per´ti|na´cious|ly, adverb.

–per´ti|na´cious|ness, noun.

Useful english dictionary. 2012.