holding firmly to an opinion or a course of action
‘Perkins was rather pertinacious when it came to asking out Jenny.’
determined, tenacious, persistent, persevering
Who’s read The Last Dragonslayer by Jasper Fforde? It’s pretty ingenious – comedy, wit, and hilarious but strangely appealing worldbuilding. Plus loveable characters, great plots, all that good stuff.
(Hint-that’s-too-unsubtle-to-be-a-hint: READ IT!)