Persistent effort.

noun [ per-se-VER-ance ]

The quality of continuing to try to achieve a particular aim despite difficulties or delays in achieving success.

• 🖊️  If it weren't for their perseverance, the Wright brothers might never have taken flight.
• 🖊️  In the face of adversity, her perseverance shone like a beacon of hope.
• 🖊️  The perseverance of the human spirit is what drives us to explore the stars.
• 🤝  persistence, tenacity, determination
• ⚔️  defeatism, resignation, surrender

Steadfastness in doing something.

noun [ per-se-VER-ance ]

The action or condition of being steadfast in doing something despite difficulty or delay in achieving success.

• 🖊️  In the face of adversity, her perseverance shone like a beacon of hope.
• 🖊️  If it weren't for his perseverance, the Wright brothers might never have taken flight.
• 🖊️  The perseverance of the scientists led to the groundbreaking discovery of the COVID-19 vaccine.
• 🤝  steadfastness, endurance, doggedness
• ⚔️  wavering, hesitation, indecision