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Synonyms for Pertinacity

Application
absorption
appliance
application
ardor
assiduity
attachment
attention
concentration
constancy
diligence
endurance
energy
fervor
fidelity
industry
insistence
loyalty
obstinacy
patience
permanence
pertinacity
plodding
plugging
relentlessness
resolution
stability
stamina
staying power
stubbornness
tenacity