Sclerotic (adjective)

1. Tending to harden or stiffen; characterized by hardening or stiffening of a bodily organ or tissue.
2. Lacking in flexibility or open-mindedness; unresponsive to new ideas or changing conditions.

Origin:

From the greek word skleros meaning hard or stiff.

Examples:

1. The sclerotic arteries were preventing the flow of blood to her brain.
2. The company's sclerotic management team was resistant to change.
3. His sclerotic thinking made it difficult for him to adapt to new technologies.
4. Atherosclerosis is a sclerotic disease that affects the coronary artery.
5. The sclerotic government policies led to an increase in poverty.