PERTINACITY
doggedness, perseverance, persistence, persistency, tenacity, tenaciousness, pertinacity
(noun) persistent determination
Source: WordNet® 3.1
Etymology
Noun
pertinacity (usually uncountable, plural pertinacities)
The state or characteristic of being pertinacious.
Synonyms
• pertinaciousness, resolve, stubbornness, tenacity
Anagrams
• antipyretic
Source: Wiktionary
Per`ti*nac"i*ty, n. Etym: [Cf. F. pertinacité.]
Definition: The quality or state of being pertinacious; obstinacy;
perseverance; persistency. Macaulay.
Syn.
– See Obstinacy.
Source: Webster’s Unabridged Dictionary 1913 Edition