Definition of "doggedness" [dog•ged•ness]

• The state of being dogged; persistence; perseverance; tenacity; stubbornness. (noun)
• Sullenness; moroseness. (noun)

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• "And America is about nothing, if not about a certain doggedness against long odds."
• "In the rest of my life, this kind of doggedness often annoys people who want me to let go of some issue."
• "He answers quietly, but with the noble doggedness which is the reason why we write this chapter in his life."